But Senate Democratic Leader Chuck Schumer said Comey should still appear before congressional committees that have invited him to testify.
The committee's chairman, Sen.
The White House initially said that letter prompted Trump to fire Comey, but Trump later said he had already made a decision to dismiss him and was thinking of "this Russian Federation thing".
But Republican politicians 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 Russian Federation ties of former National Security Adviser Michael Flynn.
And in this excerpt, Wittes explains why he thinks Donald Trump fired James Comey.
The ongoing probe into ties between Russian Federation and the Trump campaign has reportedly identified a current White House official as "a significant person of interest, "The Washington Post reports".
Mr Trump strongly disagreed, saying the appointment "hurts our country terribly".
Reports of a memo said to have been written by Comey details the former FBI director's discomfort during a meeting with the president in which he asked Comey to "let it go" in regards to the investigation of former National Security Adviser Michael Flynn. The adviser under scrutiny is not named, but described as someone close to Trump. He then made it worse by admitting he was considering the Russian Federation investigation when he did it. "He was insane, a real nut job".
However the White House said there would be no announcement Friday.
The document was read to the Times by one official, and a second official confirmed broad strokes of the discussion, the newspaper said.
And lastly, Trump also compromised his yet-to-be-named pick for Federal Bureau of Investigation director.
Trump's Twitter salvo came after the Justice Department appointed former FBI Director Robert Mueller as a special counsel to lead the investigation. Joe Lieberman, former Oklahoma Gov. Democrat Claire McCaskill corroborated Rosenstein's remarks. Rosenstein reportedly chaffed at being used as a human shield against criticism of Comey's firing.
During a briefing with news anchors, he said it "shows we're a divided, mixed-up, not unified country" and is "a very, very negative thing". In many ways, the Justice Department was being given no choice. Comey wrote other memos, although this source didn't elaborate on that point.
The people who described the contacts to Reuters said they had seen no evidence of wrongdoing or collusion between the campaign and Russian Federation in the communications reviewed so far.
"One of the losers in this is the public", Graham said.
Under US Justice Department regulations, a special counsel has all the authority of a US attorney, including the ability to initiate investigations, subpoena records and bring criminal charges. The Democrats like him; the Republicans like him. He claimed that the FBI had spoiled its reputation in its investigations of the presidential campaigns in last year's elections.
He says that even his "enemies" recognize his innocence, and he's declaring himself the most unfairly hounded president in history.
Deputy Attorney General Rod Rosenstein, who appointed Mueller as special counsel, plans to brief senators in a closed-door meeting today on Trump's decision to fire Comey.style="text-align: center;"