Often lauded for his independence, Comey had come under intense scrutiny in recent months for his role in the agency's investigation into the email practices of Trump's opponent, Democrat Hillary Clinton, including a pair of letters he sent to Congress on the matter in the final days of the campaign.
Not long after Comey put that exchange with Trump in writing and after the FBI director told lawmakers the investigation of Russian interference and possible ties between Russia and the Trump campaign was active, Comey was sacked.
The New York Times reported Tuesday that, following a meeting with Trump, Comey wrote in a memo that the president asked him to end the FBI's investigation into former national security adviser Michael Flynn's ties to Russian Federation.
May 16, 2017: A person familiar with the situation tells The Associated Press that Comey wrote in a memo after a January 27 dinner with the president that Trump had asked him to shut down the FBI investigation into Flynn. Trump made the surprise move of firing Comey, head of an investigation into Trump and his campaign's alleged ties with Russian Federation, early last week. "The Intel Committee is going to continue its investigation, full steam ahead, and we're obviously picking up momentum every day".
October 28, 2016: Days before the election, Comey informs Congress by letter that he was reopening the investigation into Clinton's email practices based on new evidence, citing the discovery of emails on a laptop used by a top Clinton aide.
Representative Jason Chaffetz, Republican chairman of the House oversight committee, sent a letter to the Federal Bureau of Investigation on Tuesday requesting that it turn over all documents and recordings that detail communications between Comey and Trump.
Chairman Richard Burr (R-N.C.) (l.) and ranking member Sen. Mark Warner (D-Va.) are heading up an investigation for the Senate Intelligence Committtee. In January, Trump reportedly sought a pledge of loyalty from Comey and failed to obtain it.
Sen. Lisa Murkowski (R-Alaska) became the fourth GOP senator to call for a special prosecutor or special committee to look into Trump's actions and Russian Federation.
Putin slammed critics who spread allegations about Trump's ties with Russian Federation.
When asked about the issue, Representative Justin Amash, of MI, said interfering in an FBI investigation into Mr Flynn could be the basis of such a case "if the allegations are true".
"It's imperative that we - Congress, the Federal Bureau of Investigation, the Administration - work to restore the public's trust".
The US Senate has the final say in Congressional impeachment proceedings, a process that Democratic lawmakers in both houses of Congress are calling for.
The initial New York Times report published late Tuesday said Comey had written a memo detailing his conversation with Trump, which was part of a paper trail Comey created to document his perception that the president's request was improper. Hosko expressed skepticism, however, that Trump's request to "go easy" on the Flynn probe would rise to the level of obstruction of justice.
"There's a lot here that's really scary", Sasse said.
"No one is above the law and that includes the President", he declared.