"If Russia hacked, if Russia did anything having to do with our election, I want to know about it".
He also questioned Mr Trump's claims that his predecessor had lost the faith of his staff in his testimony to the Senate Intelligence Committee.
"I'm offended at the president's comments", said Mr. Warner, Virginia Democrat.
In citing their conversations, Trump is nearly certainly referring to the three occasions on which he says he and Comey spoke and Comey, according to the president, told him he was not under investigation. The U.S. isn't party to the deal and has reacted cautiously, especially given its misgivings about Iran's role.
That Tweet was not, for once, from U.S. President Donald Trump (although he did tweet Friday morning, "The FAKE MEDIA is working overtime today!").
Furious Democrats, however, suggested the FBI's work will now be hopelessly tainted and demanded a special prosecutor akin to those appointed during Richard Nixon's Watergate scandal or the run-up to Bill Clinton's impeachment.
McCabe vowed no letup in the investigation.
Possible collusion between Russian Federation and the Trump campaign was once little more than a conspiracy theory, but not anymore.
Again during their dinner, Mr. Trump told Comey he needed his loyalty.
"He said, "You are not under investigation"," Trump said.
"I had a dinner with him, he wanted to have dinner because he wanted to stay on", Trump said.
Mr McCabe and five other top intelligence officials, including the heads of the Central Intelligence Agency and the National Security Agency, reiterated their January conclusion that the Russian government was behind the effort to manipulate last year's election.
After Trump fired Comey on Vice President Mike Pence and White House press secretary Sean Spicer said the decision was based on the deputy attorney general and attorney general's recommendations. "My decision", Trump said.
"What I did was I was going to fire Comey". "I was going to fire him regardless of recommendation".
Mr Rosenstein, who met privately with some senators yesterday, was invited to brief all 100 senators next week, Senate Democratic leader Chuck Schumer said.
"Russian Federation tried to undermine our free election system; they tried to influence an election in America, that's a very serious issue", said Cardin.
US intelligence agencies concluded that Russian President Vladimir Putin ordered an effort to disrupt the election that included hacking into Democratic Party emails and leaking them, with the aim of helping Trump.
US intelligence agencies have concluded that Russian Federation tried to affect the outcome of the 2016 election. Comey said that he responded, "Yes, you will have that".
Also during the White House briefing, Ms Sanders said the removal of Mr Comey has not impeded the bureau's Russian Federation investigation.
"He wanted to stay on as the Federal Bureau of Investigation head", Mr. Trump said.
Mr Trump's explanation of why he fired Mr Comey also ran counter to previous administration explanations of the dismissal.