1. US President Donald Trump and Colombian President Juan Manuel Santos standing at podiums in East Room of the White House
2. SOUNDBITE (English) Donald Trump, US President:
(Reporter question off camera): "Did you at any time urge former FBI Director James Comey, in any way, shape or form, to close or to back down the investigation into Michael Flynn. And also as you look back--"
(Trump): "No. No. Next question."
(Reporter question off camera): "Next question. As you look back over the past six months or year, have you had any recollection if you've wondered if anything you have done has been something that might be worthy of criminal charges in these investigations or impeachment as some on the left are implying?"
(Trump): "I think it's totally ridiculous. Everybody thinks so. And again we have to get back to working our country properly so that we can take care of the problems that we have. We have plenty of problems."
3. Trump and Santos standing at podiums
4. SOUNDBITE (English) Donald Trump, US President:
"There was no collusion. And everybody, even my enemies have said there is no collusion. So we want to get back and keep on the track that we're on because the track that we're on is record setting."
US President Donald Trump has responded with a direct "no, no" to a question about whether he asked former FBI Director James Comey to shelf an investigation into his former national security adviser.
Trump also was questioned on Thursday in Washington DC over revelations that he had shared secrets with the Russians. He denied this as well.
Comey associates this week revealed the existence of a memo Comey wrote after his 14 February meeting with Trump in which he says the president asked him to shut down the FBI investigation into ousted National Security Adviser Michael Flynn.
At a joint news conference with President Juan Manuel Santos of Colombia, Trump described the development as a distraction.
The Justice Department announced on Wednesday that former FBI director Robert Mueller has been given sweeping power to investigate Russian interference in the 2016 presidential campaign, including potential links between Moscow and Trump campaign associates.