The Justice Department appointed former FBI Director Robert Mueller Wednesday as a special counsel to oversee the federal investigation into allegations that Russia and Donald Trump's campaign collaborated to influence the 2016 presidential election, giving Mueller sweeping powers and the authority to prosecute any crimes uncovered in the probe.

It was a concession by the Trump administration, which had resisted calls from Democrats to turn the investigation over to outside counsel. The White House counsel's office was alerted only after the order appointing Mueller was signed.

In a written statement, Trump insisted again that there were no nefarious ties between his campaign and Russia.

"A thorough investigation will confirm what we already know — there was no collusion between my campaign and any foreign entity," he declared. "I look forward to this matter concluding quickly."

The appointment of a special counsel increases the pressure on Trump and his associates. Mueller's broad mandate gives him not only oversight of the Russia probe, but also "any matters that arose or may arise directly from the investigation." That could well include the firing last week of FBI Director James Comey.

Mueller, a former federal prosecutor at the Justice Department, was confirmed as FBI director days before the Sept. 11 attacks that would ultimately shape his tenure. The FBI's counterterrorism mission was elevated in those years, as the U.S. intelligence agencies' structure was changed to better position America to prevent another attack of that magnitude. He was so valued that President Barack Obama asked him to stay on two years longer than his 10-year term.

POOL

Washington - 13 June 2013

1. Various of FBI Direct Mueller being sworn in, then sitting down

ASSOCIATED PRESS

Washington - 17 May 2017

2. SOUNDBITE (English) Eric Tucker, Associated Press:

"Today the Justice Department announced the appointment of a special counsel to oversea an FBI investigation into potential coordination between the Trump campaign and Russia to influence the outcome of the 2016 Presidential election. That special counsel is Robert Mueller, who led the FBI for 12 years. He was appointed just before the September 11 terror attacks and stayed on even beyond his ten year term because President Obama considered him so valuable."

SCREEN GRAB

Washington - 17 May 2017

3. STILL of President Donald Trump's statement

ASSOCIATED PRESS

Washington - 17 May 2017

4 . SOUNDBITE (English) Eric Tucker, Associated Press:

"He has been very emphatic for years about the FBI's independence, its neutrality, he is highly respected as somebody who navigated the FBI through very difficult times and he was seen as somebody who really sort of led an FBI that iddn't have a major scandal for the 12 years he was on top of it."

POOL

Washington - 13 June 2013

5. SOUNDBITE: (English) Robert Mueller, FBI Director:

"I can tell you every time that we have a leak like this, and if you follow it up and you look at the intelligence afterwards there are persons who are out there who follow this very, very closely, and they are looking for ways around it. One of great vulnerabilities that terrorists understand is our communications."

ASSOCIATED PRESS

Washington - 17 May 2017

6. SOUNDBITE (English) Eric Tucker, Associated Press:

"What it really means though is that whoever he (Trump) chooses as FBI director, Mueller is now running the show vis-a-vis the Trump-Russia campaign. So in a certain sense it minimizes the impact of that appointment when it comes to the Trump Russia campaign."

7. Various exteriors of Justice Department building

8. SOUNDBITE (English) Eric Tucker, Associated Press:

"Mueller just gave a statement saying he respects this responsibility and he will discharge the duty to the best of his abilities."

9. Security officers walking outside of Justice Department

10. SOUNDBITE (English) Eric Tucker, Associated Press:

"We expect some of it to be viewed sort of outside the view of the Justice Department. We now have a special counsel who even though he technically will answer to the Deputy Attorney General it is his investigation and so we're not really sure what kind of public briefings congress will really get from the Special Counsel."

11. Exterior of Justice Department

12. SOUNDBITE (English) Eric Tucker, Associated Press:

"The appointment of a special counsel follows by one day the revelation that Comey had created a memo back in February that chronicled a conversation he had in the oval office with President Trump and according to that memo in that conversation President Trump had asked if he could see his way to ending the ongoing investigation into Michael Flynn, his National Security Advisor."

SCREEN GRAB

Washington - 17 May 2017

13 STILL of Paul Ryan statement

A group of conservative House lawmakers are calling for the appointment of a second special counsel to investigate whether misconduct took place in the FBI and the Justice Department.

The move follows a White House announcement that top FBI and Justice Department officials have agreed to meet with congressional leaders and "review" highly classified information the lawmakers have been seeking on the handling of the probe.

The agreement came after President Donald Trump made an extraordinary demand that the Justice Department investigate whether the FBI infiltrated his presidential campaign. It's unclear exactly what the members will be allowed to review or if the Justice Department will be providing any documents to Congress.

During a meeting Monday with Trump, Deputy Attorney General Rod Rosenstein and FBI Director Christopher Wray also reiterated an announcement late Sunday that the Justice Department's inspector general will expand an existing investigation into the Russia probe by examining whether there was any improper politically motivated surveillance.

Rep. Devin Nunes, an ardent Trump supporter and head of the House Intelligence Committee, has been demanding information on an FBI source in the Russia investigation.

And Trump has taken up the cause as the White House tries to combat the threat posed by special counsel Robert Mueller's investigation into potential ties between Russia and the Trump campaign.

Washington - 22 May 2018

1. Republican members of Congress walk into room

++SEPARATED BY BLACK++

2. SOUNDBITE (English): Rep. Lee Zeldin, (R) New York:

"Good morning everybody and thank you for coming out. We have at least 19 members of Congress who will be introducing today a 12 page House resolution detailing misconduct at the highest levels of the Department of Justice and Federal Bureau of Investigation. It will be outlining FISA (US Foreign Intelligence Survaillance Court) abuse. How and why the Hillary Clinton email probe ended and how and why the Trump-Russia probe began. This resolution also calls for the appointment of a second special counsel to investigate the gross misconduct with the understanding that the Justice Department cannot be expected to investigate itself. It's very important to note that the ranks of the DOJ and FBI are filled with amazing patriotic Americans who love their job, take their oath seriously and perform their jobs objectively with much respect for the rule of law. These are historic, legendary agencies that require transparency and accountability regarding the misconduct that took place. It is important for these exceptional public servants and these important agencies to continue their work moving forward stronger than ever before. As the resolution states, the concerns of the American people are serious and the issues requiring an immediate, unbiased, independent and thorough investigation are broad. In just the past few days, we learned that the DOJ, FBI or both appeared to have planted at least one person into Donald Trump's presidential campaign to infiltrate and surveil the campaign. This action alone reminds us of just how necessary this resolution is, as well as the appointment of a second special counsel."

3. Wide of news conference

4. SOUNDBITE (English): Rep. Lee Zeldin, (R) New York:

"In conclusion, I would just like to point out that while many in the media and American public have been trying to bring down the president without evidence the president Trump colluded with Russia to win the election. There is a ton of actual evidence of real misconduct that those same people had been attempting to completely sweep under the rug. I believe legal scales of justice, that no one is above the law. That includes anyone regardless of last name and that even includes people at the highest levels of the DOJ and FBI, especially when misconduct is committed in the performance of their duties while trying to take down elected officials and candidates. No official at the Justice Department can ever allow their own political bias to overwhelm their own objectivity and responsible performance of their duties. A second special counsel must be appointed and transparency and accountability is demanded for these great, legendary historic agencies. With that we are confident that these great agencies will be able to move forward stronger than they ever were before."

5. Wide of news conference

6. SOUNDBITE (English): Rep. Mark Meadows, (R) North Carolina/Freedom Caucus Chair:

"Even today, we continue to see leaks come out of the Department of Justice and FBI, spinning a narrative that quite frankly is not supported by the facts. So it's time that we get to the facts. It's time that we appoint a second special counsel."

7. Wide of news conference

A group of conservative House lawmakers are calling for the appointment of a second special counsel to investigate whether misconduct took place in the FBI and the Justice Department.

The move follows a White House announcement that top FBI and Justice Department officials have agreed to meet with congressional leaders and "review" highly classified information the lawmakers have been seeking on the handling of the probe.

The agreement came after President Donald Trump made an extraordinary demand that the Justice Department investigate whether the FBI infiltrated his presidential campaign. It's unclear exactly what the members will be allowed to review or if the Justice Department will be providing any documents to Congress.

During a meeting Monday with Trump, Deputy Attorney General Rod Rosenstein and FBI Director Christopher Wray also reiterated an announcement late Sunday that the Justice Department's inspector general will expand an existing investigation into the Russia probe by examining whether there was any improper politically motivated surveillance.

Rep. Devin Nunes, an ardent Trump supporter and head of the House Intelligence Committee, has been demanding information on an FBI source in the Russia investigation.

And Trump has taken up the cause as the White House tries to combat the threat posed by special counsel Robert Mueller's investigation into potential ties between Russia and the Trump campaign.

Washington DC - 22 May 2018

1. Republican members of Congress walk into room

++SEPARATED BY BLACK++

2. SOUNDBITE (English): Rep. Lee Zeldin, (R) New York:

"Good morning everybody and thank you for coming out. We have at least 19 members of Congress who will be introducing today a 12 page House resolution detailing misconduct at the highest levels of the Department of Justice and Federal Bureau of Investigation. It will be outlining FISA (US Foreign Intelligence Survaillance Court) abuse. How and why the Hillary Clinton email probe ended and how and why the Trump-Russia probe began. This resolution also calls for the appointment of a second special counsel to investigate the gross misconduct with the understanding that the Justice Department cannot be expected to investigate itself. It's very important to note that the ranks of the DOJ and FBI are filled with amazing patriotic Americans who love their job, take their oath seriously and perform their jobs objectively with much respect for the rule of law. These are historic, legendary agencies that require transparency and accountability regarding the misconduct that took place. It is important for these exceptional public servants and these important agencies to continue their work moving forward stronger than ever before. As the resolution states, the concerns of the American people are serious and the issues requiring an immediate, unbiased, independent and thorough investigation are broad. In just the past few days, we learned that the DOJ, FBI or both appeared to have planted at least one person into Donald Trump's presidential campaign to infiltrate and surveil the campaign. This action alone reminds us of just how necessary this resolution is, as well as the appointment of a second special counsel."

3. Wide of news conference

4. SOUNDBITE (English): Rep. Lee Zeldin, (R) New York:

"In conclusion, I would just like to point out that while many in the media and American public have been trying to bring down the president without evidence the president Trump colluded with Russia to win the election. There is a ton of actual evidence of real misconduct that those same people had been attempting to completely sweep under the rug. I believe legal scales of justice, that no one is above the law. That includes anyone regardless of last name and that even includes people at the highest levels of the DOJ and FBI, especially when misconduct is committed in the performance of their duties while trying to take down elected officials and candidates. No official at the Justice Department can ever allow their own political bias to overwhelm their own objectivity and responsible performance of their duties. A second special counsel must be appointed and transparency and accountability is demanded for these great, legendary historic agencies. With that we are confident that these great agencies will be able to move forward stronger than they ever were before."

5. Wide of news conference

6. SOUNDBITE (English): Rep. Mark Meadows, (R) North Carolina/Freedom Caucus Chair:

"Even today, we continue to see leaks come out of the Department of Justice and FBI, spinning a narrative that quite frankly is not supported by the facts. So it's time that we get to the facts. It's time that we appoint a second special counsel."

7. Wide of news conference

Senate Republicans have mixed reactions to the surprise announcement that the Justice Department has appointed former FBI Director Robert Mueller as a special counsel to oversee a federal investigation into possible collusion between Russia and the Trump campaign in 2016.

The Justice Department on Wednesday appointed former FBI Director Robert Mueller to lead the investigation. Mueller will have sweeping powers and the authority to prosecute any crimes he uncovers.

Senate Intelligence Committee Chairman Richard Burr who considered the appointment as a good decision said that ousted National Security Adviser Michael Flynn will not honor a subpoena issued by a Senate committee looking into Russia's meddling in the 2016 presidential election. Burr told reporters Thursday that Flynn's lawyer informed the panel he will not abide by a subpoena for private documents.

President Donald Trump lashed out at the appointment of a special counsel to investigate allegations that his campaign collaborated with Russia to sway the 2016 election, tweeting Thursday that it is "the single greatest witch hunt of a politician in American history!"

Reactions from Congress to Mueller's appointment were mainly positive, even though Republicans had dismissed an independent outside investigation as unnecessary and duplicative of what congressional committees already are doing.

Sen. John McCain of Arizona, the Republican chairman of the Armed Services Committee, says it's a "scandal" of Watergate proportions, and the only way to end it is to get out the full truth.

Republicans have largely stood behind Trump in the first months of his presidency as the FBI and congressional investigations into Russia's election meddling intensified. But GOP lawmakers have grown increasingly anxious since Trump fired Comey, who had been leading the bureau's probe - and after Comey associates said he had notes from a meeting in which Trump asked him to shut down the investigation into the Russia ties of former National Security Adviser Michael Flynn.

Washington - May 18, 2017

++SEPARATED BY BLACK++

1. SOUNDBITE (English) Sen. Richard Burr, (R) North Carolina:

"General Flynn's lawyer said that he would not honor the subpoena and that's not a surprise to the committee. But we'll figure out on General Flynn what the next step, if any, is. But we're continuing on with a lot of interviews and through those interviews it leads us to additional document requests and additional individuals we'd like to talk to."

2. SOUNDBITE (English) Sen. Richard Burr, (R) North Carolina:

"Director Comey is a public citizen now. He's not constrained by investigations and we think the most important thing that Director Comey can contribute now is an understanding by the American people of what transpired. We happen to think that an open hearing in front of the intelligence committee is the right way for him to do it since we've worked so closely with him and we respect him so much."

3. SOUNDBITE (English) Sen. Lindsey Graham, (R) South Carolina:

"Clearly foreign governments could interfere in our election, they did this time. They may be more successful next time. So the shape and the scope of the congressional investigation I think has dramatically changed. I respect the decision. Mueller is a good guy. But one of the big losers here is the public because we're not going to hear from Comey now most likely. I hope we do. I want to hear about the conversation. I want to know the context of it. But now that you have a special counsel, maybe that's off the table."

4. SOUNDBITE (English) Sen. Lindsey Graham, (R) South Carolina:

"I'm disappointed in many ways that the Congress may be taken out of the game now because we're a public venue. I thought Yates and Klapper were good. I thought Sally Yates was an excellent witness. I thought Klapper provided insight to the public that we all need to know, you know. It's our nation here. So hearings like that are probably now off the table, and too bad."

5. SOUNDBITE (English) Sen. Lindsey Graham, (R) South Carolina:

"I have reason to believe there may be emails between the Clinton campaign and Democratic officials and the Department of Justice during the Obama administration. There is a problem here with committee jurisdiction. If there were emails from the Clinton campaign of the Democratic operatives to the Department of Justice during the Clinton email investigation, I want to know about it."

6. SOUNDBITE (English) Sen. Ted Cruz. (R) Texas:

"I don't think appointing a special counsel was necessary. But if one was going to be appointed, I think Bob Mueller is an excellent choice. I've known Bob for two decades. And he is a serious law enforcement professional. He's someone who has been appointed positions by both Republicans presidents and Democratic presidents. And he's earned the trust on both sides of the aisles, from Republicans and Democrats. He is a fair minded, serious prosecutor. He led the FBI with great distinction. And I'm confident that he'll investigate the matter and follow the facts wherever they may lead."

7. SOUNDBITE (English) Sen. John McCain, (R) Arizona:

"In the respect that there is a new revelation almost everyday, like this morning there's a new revelation that there was more communications between the Trump campaign and the Russians in that respect that there is a new revelation every few days."

(Reporter question off camera): "How does the appointment of a special counsel change that?'

(McCain): "I think it's very important, but that is the investigate the criminal activity. The Senate and the House have to investigate the aspects of Russian activity from the standpoint of sanctions against Russia, what we do to counter these attacks, and all the aspects of cyber warfare."

SOUNDBITE (English) Sen. Patrick Toomey, (R): Pennsylvania:

"Well my opinion of Bob Mueller is that he's terrific, completely unimpeachable in all respects and widely recognized as such by everybody. I never really was convinced that this is the best way to go. We have in the past when we've used special prosecutors and special counsels it hasn't always ended well. My view was always that the president should move quickly to get a completely unimpeachable leader of the FBI, preferably a Democrat so that there would be no doubt that that organization is being run by somebody who has no allegiance to Donald Trump."

A group of conservative House lawmakers are calling for the appointment of a second special counsel to investigate whether misconduct took place in the FBI and the Justice Department.

The move follows a White House announcement that top FBI and Justice Department officials have agreed to meet with congressional leaders and "review" highly classified information the lawmakers have been seeking on the handling of the probe.

The agreement came after President Donald Trump made an extraordinary demand that the Justice Department investigate whether the FBI infiltrated his presidential campaign. It's unclear exactly what the members will be allowed to review or if the Justice Department will be providing any documents to Congress.

During a meeting Monday with Trump, Deputy Attorney General Rod Rosenstein and FBI Director Christopher Wray also reiterated an announcement late Sunday that the Justice Department's inspector general will expand an existing investigation into the Russia probe by examining whether there was any improper politically motivated surveillance.

Rep. Devin Nunes, an ardent Trump supporter and head of the House Intelligence Committee, has been demanding information on an FBI source in the Russia investigation.

And Trump has taken up the cause as the White House tries to combat the threat posed by special counsel Robert Mueller's investigation into potential ties between Russia and the Trump campaign.

Washington - 22 May 2018

1. Republican members of Congress walk into room

++SEPARATED BY BLACK++

2. SOUNDBITE (English): Rep. Lee Zeldin, (R) New York:

"Good morning everybody and thank you for coming out. We have at least 19 members of Congress who will be introducing today a 12 page House resolution detailing misconduct at the highest levels of the Department of Justice and Federal Bureau of Investigation. It will be outlining FISA (US Foreign Intelligence Survaillance Court) abuse. How and why the Hillary Clinton email probe ended and how and why the Trump-Russia probe began. This resolution also calls for the appointment of a second special counsel to investigate the gross misconduct with the understanding that the Justice Department cannot be expected to investigate itself. It's very important to note that the ranks of the DOJ and FBI are filled with amazing patriotic Americans who love their job, take their oath seriously and perform their jobs objectively with much respect for the rule of law. These are historic, legendary agencies that require transparency and accountability regarding the misconduct that took place. It is important for these exceptional public servants and these important agencies to continue their work moving forward stronger than ever before. As the resolution states, the concerns of the American people are serious and the issues requiring an immediate, unbiased, independent and thorough investigation are broad. In just the past few days, we learned that the DOJ, FBI or both appeared to have planted at least one person into Donald Trump's presidential campaign to infiltrate and surveil the campaign. This action alone reminds us of just how necessary this resolution is, as well as the appointment of a second special counsel."

3. Wide of news conference

4. SOUNDBITE (English): Rep. Lee Zeldin, (R) New York:

"In conclusion, I would just like to point out that while many in the media and American public have been trying to bring down the president without evidence the president Trump colluded with Russia to win the election. There is a ton of actual evidence of real misconduct that those same people had been attempting to completely sweep under the rug. I believe legal scales of justice, that no one is above the law. That includes anyone regardless of last name and that even includes people at the highest levels of the DOJ and FBI, especially when misconduct is committed in the performance of their duties while trying to take down elected officials and candidates. No official at the Justice Department can ever allow their own political bias to overwhelm their own objectivity and responsible performance of their duties. A second special counsel must be appointed and transparency and accountability is demanded for these great, legendary historic agencies. With that we are confident that these great agencies will be able to move forward stronger than they ever were before."

5. Wide of news conference

6. SOUNDBITE (English): Rep. Mark Meadows, (R) North Carolina/Freedom Caucus Chair:

"Even today, we continue to see leaks come out of the Department of Justice and FBI, spinning a narrative that quite frankly is not supported by the facts. So it's time that we get to the facts. It's time that we appoint a second special counsel."

7. Wide of news conference

Senate Republicans gave mixed reactions to the surprise announcement that the Justice Department has appointed former FBI Director Robert Mueller as a special counsel to oversee a federal investigation into possible collusion between Russia and the Trump campaign in 2016.

The Justice Department on Wednesday appointed former FBI Director Robert Mueller to lead the investigation.

Mueller will have sweeping powers and the authority to prosecute any crimes he uncovers.

Senate Intelligence Committee Chairman Richard Burr who considered the appointment as a good decision said that ousted National Security Adviser Michael Flynn will not honor a subpoena issued by a Senate committee looking into Russia's meddling in the 2016 presidential election.

Burr told reporters Thursday that Flynn's lawyer informed the panel he will not abide by a subpoena for private documents.

President Donald Trump lashed out at the appointment of a special counsel to investigate allegations that his campaign collaborated with Russia to sway the 2016 election, tweeting Thursday that it is "the single greatest witch hunt of a politician in American history!"

Reactions from Congress to Mueller's appointment were mainly positive, even though Republicans had dismissed an independent outside investigation as unnecessary and duplicative of what congressional committees already are doing.

Sen. John McCain of Arizona, the Republican chairman of the Armed Services Committee, says it's a "scandal" of Watergate proportions, and the only way to end it is to get out the full truth.

Republicans have largely stood behind Trump in the first months of his presidency as the FBI and congressional investigations into Russia's election meddling intensified.

But GOP lawmakers have grown increasingly anxious since Trump fired Comey, who had been leading the bureau's probe - and after Comey associates said he had notes from a meeting in which Trump asked him to shut down the investigation into the Russia ties of Flynn.

Washington - May 18, 2017

++SEPARATED BY BLACK++

1. SOUNDBITE (English) Sen. Richard Burr, (R) North Carolina:

"General (Michael) Flynn's lawyer said that he would not honor the subpoena and that's not a surprise to the committee. But we'll figure out on General Flynn what the next step, if any, is. But we're continuing on with a lot of interviews and through those interviews it leads us to additional document requests and additional individuals we'd like to talk to."

++BLACK FRAMES++

2. SOUNDBITE (English) Sen. Richard Burr, (R) North Carolina:

"(Former FBI) Director (James) Comey is a public citizen now. He's not constrained by investigations and we think the most important thing that Director Comey can contribute now is an understanding by the American people of what transpired. We happen to think that an open hearing in front of the intelligence committee is the right way for him to do it since we've worked so closely with him and we respect him so much."

++BLACK FRAMES++

3. SOUNDBITE (English) Sen. Lindsey Graham, (R) South Carolina:

"Clearly foreign governments could interfere in our election, they did this time. They may be more successful next time. So the shape and the scope of the congressional investigation I think has dramatically changed. I respect the decision. Mueller is a good guy. But one of the big losers here is the public because we're not going to hear from Comey now most likely. I hope we do. I want to hear about the conversation. I want to know the context of it. But now that you have a special counsel, maybe that's off the table."

++BLACK FRAMES++

4. SOUNDBITE (English) Sen. Lindsey Graham, (R) South Carolina:

"I'm disappointed in many ways that the Congress may be taken out of the game now because we're a public venue. I thought Yates and Klapper were good. I thought Sally Yates was an excellent witness. I thought Klapper provided insight to the public that we all need to know, you know. It's our nation here. So hearings like that are probably now off the table, and too bad."

++BLACK FRAMES++

5. SOUNDBITE (English) Sen. Lindsey Graham, (R) South Carolina:

"I have reason to believe there may be emails between the Clinton campaign and Democratic officials and the Department of Justice during the Obama administration. There is a problem here with committee jurisdiction. If there were emails from the Clinton campaign of the Democratic operatives to the Department of Justice during the Clinton email investigation, I want to know about it."

++BLACK FRAMES++

6. SOUNDBITE (English) Sen. Ted Cruz. (R) Texas:

"I don't think appointing a special counsel was necessary. But if one was going to be appointed, I think Bob Mueller is an excellent choice. I've known Bob for two decades. And he is a serious law enforcement professional. He's someone who has been appointed to positions by both Republicans presidents and Democratic presidents. And he's earned the trust on both sides of the aisles, from Republicans and Democrats. He is a fair minded, serious prosecutor. He led the FBI with great distinction. And I'm confident that he'll investigate the matter and follow the facts wherever they may lead."

++BLACK FRAMES++

7. SOUNDBITE (English) Sen. John McCain, (R) Arizona:

"I respect that there is a new revelation almost everyday, like this morning there's a new revelation that there was more communications between the Trump campaign and the Russians in that respect that there is a new revelation every few days."

(Reporter question off camera: How does the appointment of a special counsel change that?)

"I think it's very important, but that is to investigate the criminal activity. The Senate and the House have to investigate the aspects of Russian activity from the standpoint of sanctions against Russia, what we do to counter these attacks, and all the aspects of cyber warfare."

++BLACK FRAMES++

SOUNDBITE (English) Sen. Patrick Toomey, (R) Pennsylvania:

"Well my opinion of Bob Mueller is that he's terrific, completely unimpeachable in all respects and widely recognized as such by everybody. I never really was convinced that this is the best way to go. We have in the past when we've used special prosecutors and special counsels it hasn't always ended well. My view was always that the president should move quickly to get a completely unimpeachable leader of the FBI, preferably a Democrat so that there would be no doubt that that organization is being run by somebody who has no allegiance to Donald Trump."

++ENDS ON A SOUNDBITE++

Senate Republicans have mixed reactions to the surprise announcement that the Justice Department has appointed former FBI Director Robert Mueller as a special counsel to oversee a federal investigation into possible collusion between Russia and the Trump campaign in 2016.

The Justice Department on Wednesday appointed former FBI Director Robert Mueller to lead the investigation. Mueller will have sweeping powers and the authority to prosecute any crimes he uncovers.

Senate Intelligence Committee Chairman Richard Burr who considered the appointment as a good decision said that ousted National Security Adviser Michael Flynn will not honor a subpoena issued by a Senate committee looking into Russia's meddling in the 2016 presidential election. Burr told reporters Thursday that Flynn's lawyer informed the panel he will not abide by a subpoena for private documents.

President Donald Trump lashed out at the appointment of a special counsel to investigate allegations that his campaign collaborated with Russia to sway the 2016 election, tweeting Thursday that it is "the single greatest witch hunt of a politician in American history!"

Reactions from Congress to Mueller's appointment were mainly positive, even though Republicans had dismissed an independent outside investigation as unnecessary and duplicative of what congressional committees already are doing.

Sen. John McCain of Arizona, the Republican chairman of the Armed Services Committee, says it's a "scandal" of Watergate proportions, and the only way to end it is to get out the full truth.

Republicans have largely stood behind Trump in the first months of his presidency as the FBI and congressional investigations into Russia's election meddling intensified. But GOP lawmakers have grown increasingly anxious since Trump fired Comey, who had been leading the bureau's probe - and after Comey associates said he had notes from a meeting in which Trump asked him to shut down the investigation into the Russia ties of former National Security Adviser Michael Flynn.:

Washington - May 18, 2017

++SEPARATED BY WHITE FLASHES++

1. SOUNDBITE (English) Sen. Richard Burr, (R) North Carolina:

"General Flynn's lawyer said that he would not honor the subpoena and that's not a surprise to the committee. But we'll figure out on General Flynn what the next step, if any, is. But we're continuing on with a lot of interviews and through those interviews it leads us to additional document requests and additional individuals we'd like to talk to."

2. SOUNDBITE (English) Sen. Richard Burr, (R) North Carolina:

"Director Comey is a public citizen now. He's not constrained by investigations and we think the most important thing that Director Comey can contribute now is an understanding by the American people of what transpired. We happen to think that an open hearing in front of the intelligence committee is the right way for him to do it since we've worked so closely with him and we respect him so much."

3. SOUNDBITE (English) Sen. Lindsey Graham, (R) South Carolina:

"The shape and the scope of the congressional investigation I think has dramatically changed. I respect the decision. Mueller is a good guy. But one of the big losers here is the public because we're not going to hear from Comey now most likely. I hope we do. I want to hear about the conversation. I want to know the context of it. But now that you have a special counsel, maybe that's off the table."

4. SOUNDBITE (English) Sen. Lindsey Graham, (R) South Carolina:

"I'm disappointed in many ways that the Congress may be taken out of the game now because we're a public venue. I thought Yates and Klapper were good. I thought Sally Yates was an excellent witness. I thought Klapper provided insight to the public that we all need to know, you know. It's our nation here. So hearings like that are probably now off the table, and too bad."

5. SOUNDBITE (English) Sen. Ted Cruz. (R) Texas:

"I don't think appointing a special counsel was necessary. But if one was going to be appointed, I think Bob Mueller is an excellent choice."

6. SOUNDBITE (English) Sen. John McCain, (R) Arizona:

"There is a new revelation almost everyday, like this morning there's a new revelation that there was more communications between the Trump campaign and the Russians in that respect that there is a new revelation every few days."

7. SOUNDBITE (English) Sen. Patrick Toomey, (R): Pennsylvania:

"Well my opinion of Bob Mueller is that he's terrific, completely unimpeachable in all respects and widely recognized as such by everybody. I never really was convinced that this is the best way to go. We have in the past when we've used special prosecutors and special counsels it hasn't always ended well. My view was always that the president should move quickly to get a completely unimpeachable leader of the FBI, preferably a Democrat so that there would be no doubt that that organization is being run by somebody who has no allegiance to Donald Trump."