"There is no collusion between certainly myself and my campaign, but I can always speak for myself, and the Russians - zero".
The President was also asked for his response to the Justice Department appointment of special counsel to handle the Russian Federation investigation.
"We have a very divided country because of that and many other things", Trump said.
This is the single greatest witch hunt of a politician in American history!
The White House Counsel's office represents the presidency, but aides are making the case to Trump that he needs an outside legal team for this probe. The request was made by Trump after Flynn resigned as the national security advisor following surfacing of reports that he had maintained links with the Russians. The White House initially tried to shoot down the story, before Trump himself confirmed it.
Today marked the first time since the appointment of a special counsel that Trump publicly addressed Comey's firing and the subsequent news of a memo written by the ex-FBI director.
Comey associates this week revealed the existence of a memo Comey wrote after his February 14 meeting with Trump in which he says the president asked him to shut down the FBI investigation into ousted National Security Adviser Michael Flynn.More news: Slideshow: Ultimate Lineup of Former Sacramento Kings' Draft Picks
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President Donald Trump emphatically denied asking former FBI Director James Comey to end the agency's investigation into former National Security Adviser Michael Flynn on Thursday afternoon.
The president on Thursday muddled his explanation for firing Comey last week, saying he ousted him because he was "very unpopular with most people". "And hopefully, this can go quickly, because we have to show unity if we're going to do great things with respect to the rest of the world".
"I don't think I'm in a position to give any advice to President Trump".
The appointment of Mueller as special counsel will raise the intensity of the investigation and make it less vulnerable to political interference. "That's why the Deputy Attorney General went out and wrote his very, very strong letter", Trump said while referring to Comey's testimony before lawmakers on Capitol Hill.
In conversations with allies inside and outside the White House, Trump, who rarely assumes blame for the crises he creates, has criticised his staff as serving him poorly.
With the 2018 Congressional mid-term elections fast approaching, maybe of Trump's erstwhile allies face a hard campaign dominated by questions about the president's conduct and with few legislative victories to fall back on.