Special counsel Robert Mueller says President Donald Trump's efforts to influence the Russia investigation "were mostly unsuccessful," but that was because the people surrounding the president "declined to carry out orders to accede to his requests."

AP reporter Chad Day gives an initial review in this AP debrief of the two-volume report that exceeds 400 pages.

"The first volume that deals with Russian election interference and the actions of the Trump campaign is a couple of hundred pages long and goes into exhaustive detail about the information that they've gathered," he says.

"Interviewing 500 witnesses, issuing more than twenty eight hundred subpoenas, and putting together probably the most complete picture of what happened during the 2016 election involving the Trump campaign and Russia."

Mueller's report details instances by several officials, including former FBI Director James Comey, former White House counsel Don McGahn and former campaign manager Corey Lewandowski, ignoring or refusing Trump's requests to interfere in the investigation.

"But some of those episodes show that Trump made several attempts to seize control of the investigation try to have Special Counsel Robert Mueller removed from the probe, or that his attorneys were trying to gather information about what people who were cooperating with the investigation were telling prosecutors," Day says.

Washington, DC - 18 April 2019

1. STILL: Redacted report of Special Council Robert Mueller

Washington, D.C. - 18 April 2019

2. SOUNDBITE (English) Chad Day, Associated Press +++PARTIALLY COVERED WITH STILL IMAGE+++

"So the headline today is that Mueller has made two big conclusions out of his report. Number one is that he did not establish that there was a criminal conspiracy between the Russian government and the Trump campaign to interfere in the 2016 election. The other is that he did not exonerate the president on the question of whether he obstructed justice, or tried to influence the Russia probe and crossed over into criminal conduct.

Washington, DC - 15 April 2010

3. FILE: Still of Robert Mueller on Capitol Hill

Washington, DC - 18 April 2019

4. STILL: Redacted report of Special Council Robert Mueller

5. SOUNDBITE (English) Chad Day, Associated Press +++PARTIALLY COVERED WITH STILL IMAGES+++

"In particular on the question of obstruction, Mueller examined 10 different episodes in which he was looking at the president's conduct to determine whether or not it crossed over into criminal conduct. Some of those episodes show that Trump made several attempts to seize control of the investigation, try to have Special Counsel Robert Mueller removed from the probe, or that his attorneys were trying to gather information about what people who were cooperating with the investigation were telling prosecutors."

6. STILL: President Trump speaks at Wounded Warrior Soldier Ride at White House

7. SOUNDBITE (English) Chad Day, Associated Press +++PARTIALLY COVERED WITH STILL IMAGES+++

"In particular, there's one episode that's related involving his personal attorney of his who is trying to gather information from former National Security Adviser Michael Flynn. Now, this is going back in time a little bit, but Flynn had just cut off contact with the Trump legal team, ahead of his pleading guilty and cooperating with the government. The report says that one of Trump's attorneys then reached out and tried to remind them that the president had warm feelings for Flynn and ask him to see if there was any information that he knew that could implicate the president. Whenever Flynn's attorneys rebuffed that effort, the attorney then said that he would remind the president that that Flynn's actions showed hostility towards the president. So, what they're showing is that they're painting a picture here of a president and people around him who are trying to shape and gather information about the probe but also to in some cases you know take control of it and influence the direction of where it's going."

Washington, DC - 18 December 2018

8. FILE: Still of National Security Adviser Michael Flynn arrives at federal courthouse

9. FILE: Still of National Security Adviser Michael Flynn at federal courthouse

Washington, DC - 18 April 2019

10. SOUNDBITE (English) Chad Day, Associated Press +++PARTIALLY COVERED WITH STILL IMAGES+++

"The report also details what happened in the months right after Special Counsel Robert Mueller was appointed in May of 2017. In particular, it shows that the president ordered his then White House counsel Don McGhan to try to have a special counsel Robert Mueller removed. Now McGahn rebuffed this effort but it shows how the president and the report quotes him saw the probe as possible end to his presidency, and something that would threaten his power. And at that point was trying to take efforts to take control of the investigation by having Mueller removed."

Washington, DC -- 15 April 2010

11. FILE: Still of Robert Mueller testifies on Capitol Hill

National Harbor, Maryland - 22 February 2018

12. FILE: Still of White House Counsel Don McGhan speaking at conservative gathering

Washington, DC - 18 April 2019

Redacted report on Russian interference on 2016 presidential election

It was a few days before the one-year anniversary of President Donald Trump's inauguration and a Lebanese-American businessman was on his way to Mar-a-Lago.

George Nader, an international fixer whose long history included intrepid back-channel mediation between Israel and Arab countries - and a 15-year-old pedophilia conviction in Europe that has not been previously reported - was transiting through Dulles International Airport outside Washington.

It was hardly his first far-flung journey to see top aides of the world's most powerful leader, as Nader had met the U.S. president's son-in-law, Jared Kushner, and chief strategist Steve Bannon in the days before they stormed the White House.

But he encountered an altogether different scene awaiting him at the airport.

There, special counsel Robert Mueller's investigators stopped Nader, people familiar with the case said. His electronics were seized and he was then allowed to go to his lawyer. Nader later agreed to cooperate with Mueller's investigation, said the people with knowledge of the case as it pertains to Nader. They weren't authorized to speak publicly on the case and demanded anonymity.

Mueller, whose team has spent the last 10 months investigating possible Trump-related wrongdoing connected to Russia, is interested in high-level get-togethers Nader participated in after the presidential election, according to three people familiar with the case.

The first took place in Trump Tower in New York in December 2016 and brought together Nader, Kushner, Bannon - whom Trump fired last August - and Mohammed bin Zayed, the crown prince of Abu Dhabi and de facto leader of the United Arab Emirates. The second occurred a month later in the Indian Ocean archipelago of Seychelles and involved Nader, bin Zayed, former Blackwater boss Erik Prince and Kirill Dmitriev, a Russian banker close to President Vladimir Putin.

For Nader, it was the latest brush with the law in an eventful, globe-trotting career.

Many of Nader's former contacts and onetime friends have noted in recent weeks how they lost touch with him in the early 2000s.

On Wednesday, an official in the Czech Republic told The Associated Press that Nader is a convicted pedophile and served time in a Prague prison around that time.

Nader was convicted by Prague's Municipal Court of 10 cases of sexually abusing minors and sentenced to a one-year prison term in May 2003, said Marketa Puci, the court spokeswoman. She said the crimes occurred between 1999 and 2002.

Nader's legal problems in Prague appear unrelated to his role in Mueller's probe in the United States. But they contribute to the portrait of a man who has led a shadowy existence as a go-between across numerous Middle East capitals and who gave testimony to Mueller's Washington grand jury earlier this month.

Nader had worked in recent times as an adviser to bin Zayed, one of the most powerful men in the Middle East, according to people who know Nader. The questioning of Nader in the Mueller probe suggests possible interest in UAE relations with Trump's transition team or his administration.

Puci, the court spokeswoman, said Nader was convicted of "moral corruption of minors, sexual abuse and impairing morals," after abusing underage boys.

In one case, Nader requested oral sex from a 14-year-old in a room at the Hilton Hotel in Prague, Puci said. After the boy refused, Nader masturbated in front of the boy and paid him 2,000 koruna - worth about $100 today, she said.

The verdict cites other examples of Nader providing money, jewelry, cellphones, clothes and accommodation for sexual services. The AP was able to see a copy of the verdict, which gives Nader's birthdate as May 15, 1959. Nader was separately accused in Washington, D.C., of child pornography infractions in 1985, but those charges were later dropped. A criminal docket sheet obtained by the AP shows the same birthdate for Nader.

Two people with knowledge of the case say it involved the same Nader now cooperating with Mueller.

Puci said it wasn't clear how much of the one-year sentence Nader served in the Czech Republic. He was ordered expelled following his time served.

Kathy Ruemmler, who previously served as White House counsel to President Barack Obama, is among the lawyers representing Nader. She declined to answer questions about her client.

But Sandeep Savla, another lawyer for Nader, said: "This is nothing more than an orchestrated, disgusting scheme by those who are trying to intimidate Mr. Nader into silence. It won't work. Mr. Nader will continue to answer truthfully questions put to him by the special counsel."

Nader's connections with Trump confidants include Elliott Broidy, a top Republican fundraiser who co-hosted a Tuesday night event attended by the president in Beverly Hills, California.

Earlier this month, several media organizations, including the AP, obtained emails belonging to Broidy, a California-based venture capitalist and the Republican National Committee's deputy finance chairman. They show Broidy emailing Nader with a summary of Broidy's talks with Kushner and Trump in the White House in October 2017, touching on matters including the UAE's bitter dispute with fellow Persian Gulf country Qatar.

Broidy accused Qatar of hacking his emails. The Qataris denied the charge.

"Your government's actions against U.S. citizens will jeopardize your nation's relationship with the United States," Broidy wrote in a public letter to Qatar's U.S. ambassador.

In response, the Qatari government called Broidy's "baseless accusations" a "diversionary tactic."

ASSOCIATED PRESS

Prague - 14 March 2018

1. Portion of court verdict and sentence with George Nader's name on it and stating he is a citizen of the United States

2. Various, Prague Municipal Court Spokesperson, Marketa Puci, holding court verdict and sentence

3. SOUNDBITE (Czech) Marketa Puci, Prague Municipal Court Spokesperson:

"I'm holding a verdict by which an American citizen, George Nader, together with Czech offenders was in 2003 convicted, for crimes that I will now read to you. The court sentenced him to one year in prison and to an indefinite deportation."

4. Shot of first page of court verdict and sentence reading, "judgment on behalf of the Republic"

5. SOUNDBITE (Czech) Marketa Puci, Prague Municipal Court Spokesperson:

"According to the then valid law, Mr. Nader was convicted of moral corruption of minors, sexual abuse and impairing morals."

6. Shot of first page of court verdict and sentence reading, "judgment on behalf of the Republic"

7. SOUNDBITE (Czech) Marketa Puci, Prague Municipal Court Spokesperson:

"At that time was (the victim) was 14-years-old. He (Nader) requested oral sex and after the boy refused, he with the boy's consent, pulled out his private parts and masturbated in front of him and for that mister Nader paid the boy 2000 Koruna. And there have been 10 similar cases like this."

ASSOCIATED PRESS

Washington, D.C. - 15 May 2017

8. Abu Dhabi Crown Prince Sheikh Mohammed bin Zayed Al Nahyan with President Donald Trump in Oval Office

ASSOCIATED PRESS

Washington - 13 June 2013

8. Various, then-FBI Director Robert Mueller being sworn in

9. STILL Image Mueller in committee hearing

POOL

New York - 17 August 2016

10. Various views, then candidate Donald Trump meeting with advisers in Trump Tower, including Stephen Bannon and Paul Manafort

POOL

New York - 15 December 2016

11. Wide, Trump Tower lobby

ASSOCIATED PRESS

New York - 11 November 2016

12. STILL Image, Stephen Bannon leaving Trump Tower

ASSOCIATED PRESS

New York - 9 December 2016

13. STILL Images, Steve Bannon speaking on cellphone outside Trump Tower

ASSOCIATED PRESS

New York - 14 November 2016

14. Mid, Jared Kushner arrives in lobby of Trump Tower

POOL

New York - 6 December 2016

15. US President-elect Donald Trump walks out of elevator at Trump Tower

16. SOUNDBITE (English) Donald J. Trump, President-elect: ++SHOT CONTINUES FROM PREVIOUS++

"Good morning, how are you? Everything fine? We have got some great people coming in today. You'll see them."

ASSOCIATED PRESS

Dulles, Virginia - 6 October 2014

17. Wide, zoom Dulles airport

A key witness in special counsel Robert Mueller's probe into Russian connections to the Trump campaign is a convicted pedophile, an official in the Czech Republic confirmed on Wednesday.

George Nader was convicted by Prague's Municipal Court of 10 cases of sexually abusing minors and sentenced to a one-year prison term in May 2003, said Marketa Puci, a court spokeswoman.

She said the crimes occurred between 1999 and 2002.

Nader is an international fixer whose long history included intrepid back-channel mediation between Israel and Arab countries - and a 15-year-old pedophilia conviction in Europe that has not been previously reported.

Puci, the court spokeswoman, said Nader was convicted of "moral corruption of minors, sexual abuse and impairing morals," after abusing underage boys.

In one case, Nader requested oral sex from a 14-year-old in a room at the Hilton Hotel in Prague, Puci said.

After the boy refused, Nader masturbated in front of the boy and paid him 2,000 koruna - worth about 100 US dollars today, she said.

The verdict cites other examples of Nader providing money, jewelry, cellphones, clothes and accommodation for sexual services.

The AP was able to see a copy of the verdict, which gives Nader's birthdate as May 15, 1959.

Nader was separately accused in Washington, D.C., of child pornography infractions in 1985, but those charges were later dropped.

A criminal docket sheet obtained by the AP shows the same birthdate for Nader.

Two people with knowledge of the case say it involved the same Nader now cooperating with Mueller.

Puci said it wasn't clear how much of the one-year sentence Nader served in the Czech Republic. He was ordered expelled following his time served.

Nader was stopped by Mueller's investigators on his way to Mar-A-Lago a few days before the one-year anniversary of President Donald Trump's inauguration.

He later agreed to cooperate with Mueller's investigation, said the people with knowledge of the case as it pertains to Nader. They weren't authorized to speak publicly on the case and demanded anonymity.

Mueller, whose team has spent the last 10 months investigating possible Trump-related wrongdoing connected to Russia, is interested in high-level get-togethers Nader participated in after the presidential election, according to three people familiar with the case.

Nader's legal problems in Prague appear unrelated to his role in Mueller's probe in the United States. But they contribute to the portrait of a man who has led a shadowy existence as a go-between across numerous Middle East capitals and who gave testimony to Mueller's Washington grand jury earlier this month.

Nader had worked in recent times as an adviser to bin Zayed, one of the most powerful men in the Middle East, according to people who know Nader. The questioning of Nader in the Mueller probe suggests possible interest in UAE relations with Trump's transition team or his administration.

Kathy Ruemmler, who previously served as White House counsel to President Barack Obama, is among the lawyers representing Nader. She declined to answer questions about her client.

But Sandeep Savla, another lawyer for Nader, said: "This is nothing more than an orchestrated, disgusting scheme by those who are trying to intimidate Mr. Nader into silence. It won't work. Mr. Nader will continue to answer truthfully questions put to him by the special counsel."

Prague - 14 March, 2018

1. Various of Prague Municipal Court Spokesperson, Marketa Puci, holding court verdict and sentence

2. SOUNDBITE (Czech) Marketa Puci, Prague Municipal Court Spokesperson:

"I'm holding a verdict by which an American citizen, George Nader, together with Czech offenders was in 2003 convicted, for crimes that I will now read to you. The court sentenced him to one year in prison and to an indefinite deportation."

3. Shot of first page of court verdict and sentence reading (Czech) "Judgement on behalf of the republic"

4. SOUNDBITE (Czech) Marketa Puci, Prague Municipal Court Spokesperson:

"According to the then valid law, Mr Nader was convicted of moral corruption of minors, sexual abuse and impairing morals."

5. Shot of first page of court verdict and sentence reading (Czech) "Judgement on behalf of the Republic"

6. SOUNDBITE (Czech) Marketa Puci, Prague Municipal Court Spokesperson:

"At that time was (the victim) was 14-years-old. He (Nader) requested oral sex and after the boy refused, he with the boy's consent, pulled out his private parts and masturbated in front of him and for that Mr Nader paid the boy 2000 Koruna. And there have been 10 similar cases like this."

7. Portion of court verdict and sentence with George Nader's name on it and stating he is a citizen of the United States

President Donald Trump and his lawyers are laying out an extraordinarily expansive vision of executive authority that scholars say is mostly untested in court and could portend a drawn-out fight with the prosecutors now investigating him.

A memo submitted by the president's lawyers to special counsel Robert Mueller asserts as fact that presidents cannot obstruct justice because, as the country's chief law enforcement officer, they have ultimate control of the Justice Department and executive branch.

His lawyers have repeatedly insisted that it's beyond dispute that a sitting president cannot be criminally prosecuted, while Trump tweeted Monday that he has the "absolute right" to pardon himself.

As Mueller's investigation moves forward, courts may have to confront questions with minimal if any historical precedent.

Those include whether a president can be forced to answer questions from prosecutors, whether it's possible for a commander-in-chief to criminally interfere in investigations and whether a president's broad pardon power can be deployed for corrupt purposes.

Mueller is investigating whether Trump associates coordinated with Russia during the 2016 presidential election and whether Trump took steps to shut down that investigation through actions including the firing of FBI Director James Comey.

Though Trump insists he did nothing wrong, the statements from him and his lawyers, including the January memo to Mueller, make clear how much of their defense revolves around establishing that he was constitutionally empowered to take the actions he took that are now under investigation.

The defense argument suggests that protocols meant to protect against abuses of power are merely norms the American public has come to expect, rather than laws binding upon a president.

There's some historical precedent for the court clash that could be instigated by the Trump investigation, but in many ways the arguments remain unsettled and tested.

The Supreme Court has never definitively ruled on the question of whether a president could be forced to testify, though the justices in 1974 did rule that President Richard Nixon had to turn over recordings and documents that had been subpoenaed.

TWITTER @RealDonaldTrump

Internet - 4 June 2018

1. Donald Trump tweet reading (English) "As has been stated by numerous legal scholars, I have the absolute right to PARDON myself, but why would I do that when I have done nothing wrong? In the meantime, the never ending Witch Hunt, led by 13 very Angry and Conflicted Democrats (& others) continues into the mid-terms!"

2. Donald Trump tweet reading (English) "The appointment of the Special Counsel is totally UNCONSTITUTIONAL! Despite that, we play the game because I, unlike the Democrats, have done nothing wrong!"

ASSOCIATED PRESS

3. SOUNDBITE (English): Eric Tucker, AP Writer:

"So President Donald Trump tweeted this morning that he has the absolute power to pardon himself if he wants to, though he quickly added that he has no intention of doing so because he's done nothing wrong."

POOL

Washington - 1 June 2018

4. Trump walking toward camera

ASSOCIATED PRESS

5. SOUNDBITE (English): Eric Tucker, AP Writer:

"So what the president is getting at is actually something that has been historically untested, so nobody actually really knows whether it is true or not if the president can pardon himself because there's never been a Supreme Court that's weighed in on the opinion because frankly no president has ever thought to try to pardon himself or been in the position where they were going to do that. So, we're getting into unchartered territory to the extend that we're talking about this is a reasonable possibility. It's never reached the Supreme Court. I would however note that there is a Justice Department Office of Legal Counsel opinion from 1974 that suggests the president cannot act as his or her own judge. And so therefore would mitigate against pardoning himself or herself."

ASSOCIATED PRESS

Washington - 1 June 2018

6. Trump walking on White House lawn

ASSOCIATED PRESS

7. SOUNDBITE (English): Eric Tucker, AP Writer:

"So what we're seeing from the series of public statements and tweets both from the president and his lawyers are really expansive visions of constitutional presidential authority and power. And so we are realizing that the defense for the president in the Mueller investigation is not so much a factual defense about what I did or didn't do as much as as I am president and therefore I am entitled to carry out the very acts that you're now investigating me for and so if I want to fire the FBI director, I can. If I want to ask the FBI director to shut down a particular investigation. I can. I'm the president. I control the executive branch. And so we are now getting into fairly untested arguments about the scope of the constitutional authorities vested in the president."

ASSOCIATED PRESS

Washington - 13 June 2013

8. Robert Mueller testifies on Capitol Hill

ASSOCIATED PRESS

9. SOUNDBITE (English): Eric Tucker, AP Writer:

"So a lot's going to depend on whether the president consents to an interview. So if he agrees to an interview, that would sort of seem to suggest there won't be a hugely drawn out court fight. If he rejects the interview request formally and then Mueller chooses to subpoena, him which is not something that we're aware that he's going to do. But should he subpoena him, we will anticipate a very significant court fight, potentially up to the Supreme Court that will really test some of these issues that we're talking about, whether the president can be subpoenaed for his testimony, whether he could be compelled to speak to investigators. These are really significant issues that suggest that a big court fight could be ahead."

ASSOCIATED PRESS

Beijing - 13 June 2013

10. Mueller at news conference

ASSOCIATED PRESS

11. SOUNDBITE (English): Eric Tucker, AP Writer:

"I guess what's really interesting to me, at least, is how much of this is truly unknown. So you have legal experts and academics on one side of the spectrum who say this can never happen. You have others who say, 'well actually, technically when you look at the Constitution it doesn't preclude the types of behaviors or responses that the president's talking about.' So to the extent that we are moving into areas that we've never been before. I think there's going to be an opportunity to create new law and there's not going to be much to look at that guides us in terms of this is the one true right answer. So it's sort of fascinating in that sense."

POOL

Joint Base Andrews - 31 May 2018

12. Trump walking up steps to Air Force One

President Donald Trump and his lawyers are laying out an extraordinarily expansive vision of executive authority that scholars say is mostly untested in court and could portend a drawn-out fight with the prosecutors now investigating him.

A memo submitted by the president's lawyers to special counsel Robert Mueller asserts as fact that presidents cannot obstruct justice because, as the country's chief law enforcement officer, they have ultimate control of the Justice Department and executive branch.

His lawyers have repeatedly insisted that it's beyond dispute that a sitting president cannot be criminally prosecuted, while Trump tweeted Monday that he has the "absolute right" to pardon himself.

As Mueller's investigation moves forward, courts may have to confront questions with minimal if any historical precedent.

Those include whether a president can be forced to answer questions from prosecutors, whether it's possible for a commander-in-chief to criminally interfere in investigations and whether a president's broad pardon power can be deployed for corrupt purposes.

Mueller is investigating whether Trump associates coordinated with Russia during the 2016 presidential election and whether Trump took steps to shut down that investigation through actions including the firing of FBI Director James Comey.

Though Trump insists he did nothing wrong, the statements from him and his lawyers, including the January memo to Mueller, make clear how much of their defense revolves around establishing that he was constitutionally empowered to take the actions he took that are now under investigation.

The defense argument suggests that protocols meant to protect against abuses of power are merely norms the American public has come to expect, rather than laws binding upon a president.

There's some historical precedent for the court clash that could be instigated by the Trump investigation, but in many ways the arguments remain unsettled and tested.

The Supreme Court has never definitively ruled on the question of whether a president could be forced to testify, though the justices in 1974 did rule that President Richard Nixon had to turn over recordings and documents that had been subpoenaed.

TWITTER @RealDonaldTrump

Internet - 4 June 2018

1. Donald Trump tweet reading (English) "As has been stated by numerous legal scholars, I have the absolute right to PARDON myself, but why would I do that when I have done nothing wrong? In the meantime, the never ending Witch Hunt, led by 13 very Angry and Conflicted Democrats (& others) continues into the mid-terms!"

2. Donald Trump tweet reading (English) "The appointment of the Special Counsel is totally UNCONSTITUTIONAL! Despite that, we play the game because I, unlike the Democrats, have done nothing wrong!"

ASSOCIATED PRESS

3. SOUNDBITE (English): Eric Tucker, AP Writer:

"So President Donald Trump tweeted this morning that he has the absolute power to pardon himself if he wants to, though he quickly added that he has no intention of doing so because he's done nothing wrong."

POOL

Washington - 1 June 2018

4. Trump walking toward camera

ASSOCIATED PRESS

5. SOUNDBITE (English): Eric Tucker, AP Writer:

"So what the president is getting at is actually something that has been historically untested, so nobody actually really knows whether it is true or not if the president can pardon himself because there's never been a Supreme Court that's weighed in on the opinion because frankly no president has ever thought to try to pardon himself or been in the position where they were going to do that. So, we're getting into unchartered territory to the extend that we're talking about this is a reasonable possibility. It's never reached the Supreme Court. I would however note that there is a Justice Department Office of Legal Counsel opinion from 1974 that suggests the president cannot act as his or her own judge. And so therefore would mitigate against pardoning himself or herself."

ASSOCIATED PRESS

Washington - 1 June 2018

6. Trump walking on White House lawn

ASSOCIATED PRESS

7. SOUNDBITE (English): Eric Tucker, AP Writer:

"So what we're seeing from the series of public statements and tweets both from the president and his lawyers are really expansive visions of constitutional presidential authority and power. And so we are realizing that the defense for the president in the Mueller investigation is not so much a factual defense about what I did or didn't do as much as as I am president and therefore I am entitled to carry out the very acts that you're now investigating me for and so if I want to fire the FBI director, I can. If I want to ask the FBI director to shut down a particular investigation. I can. I'm the president. I control the executive branch. And so we are now getting into fairly untested arguments about the scope of the constitutional authorities vested in the president."

ASSOCIATED PRESS

Washington - 13 June 2013

8. Robert Mueller testifies on Capitol Hill

ASSOCIATED PRESS

9. SOUNDBITE (English): Eric Tucker, AP Writer:

"So a lot's going to depend on whether the president consents to an interview. So if he agrees to an interview, that would sort of seem to suggest there won't be a hugely drawn out court fight. If he rejects the interview request formally and then Mueller chooses to subpoena, him which is not something that we're aware that he's going to do. But should he subpoena him, we will anticipate a very significant court fight, potentially up to the Supreme Court that will really test some of these issues that we're talking about, whether the president can be subpoenaed for his testimony, whether he could be compelled to speak to investigators. These are really significant issues that suggest that a big court fight could be ahead."

ASSOCIATED PRESS

Beijing - 13 June 2013

10. Mueller at news conference

ASSOCIATED PRESS

11. SOUNDBITE (English): Eric Tucker, AP Writer:

"I guess what's really interesting to me, at least, is how much of this is truly unknown. So you have legal experts and academics on one side of the spectrum who say this can never happen. You have others who say, 'well actually, technically when you look at the Constitution it doesn't preclude the types of behaviors or responses that the president's talking about.' So to the extent that we are moving into areas that we've never been before. I think there's going to be an opportunity to create new law and there's not going to be much to look at that guides us in terms of this is the one true right answer. So it's sort of fascinating in that sense."

POOL

Joint Base Andrews - 31 May 2018

12. Trump walking up steps to Air Force One