Flynn has declined to testify to the US Senate Intelligence Committee about his Russian ties, invoking his constitutional right to avoid self-incrimination.
White House officials said they did not know whether US President Donald Trump would seek to block former Federal Bureau of Investigation director James Comey from testifying to Congress this week, a move that could spark a political backlash.
Warner says, however, that Robert Mueller, who was appointed special counsel in the FBI's investigation into Russian election meddling and the Trump campaign, will have to first agree whether that Comey can look at those memos, or whether the committee can look at those memos. The White House has denied that a "conversation of that nature occurred".
On top of all of this, Comey appears to be trying to play things safe anyway.
"I said to myself, I said "You know, this Russian Federation thing with Trump and Russian Federation is a made-up story, it's an excuse by the Democrats for having lost an election that they should have won", Trump said.
Jarrett also said that Mr. Comey put himself in a box because, if he felt at the time the conversation rose to obstruction, he was obligated to report it.
"That committee hearing was just noticed and I think, obviously, it has got to be reviewed", Spicer said. Comey lost his job and may well have influenced the American presidential election the last time he ignored these rules with headline grabbing revelations about the Hillary Clinton email probe. Since then, reports have emerged alleging that the president had previously asked Comey to drop an investigation into former national security adviser Mike Flynn.More news: Jeff Sessions denies 'false and scurrilous allegations'
"I don't believe he is", he said when asked if the President was the target of an investigation.
So a series of interactions, each of which the source said could have been considered a "ham-handed misstep", might be seen differently by the former FBI Director with the benefit of hindsight, not to mention his own firing.
The Justice Department and multiple United States congressional committees are investigating Russia's actions in the 2016 presidential election and questions about possible collusion between Russian officials and Trump campaign associates. Specifically, given how massively politically disadvantageous it would be ― sending a clear message, whether accurately or not, that there's something to be feared in Comey's testimony ― to try to throw up roadblocks anyway would suggest something dire about whatever the administration is anxious about.
There are already calls for Donald Trump to be impeached if was clear that he fired James Comey to stop the Russian Federation investigation.
Comey is expected to tell lawmakers about several discussions he had with Trump, including one during which the president urged him to stop investigating former national security advisor Michael Flynn. Under the constitution, Trump has the ability to invoke his presidential powers to silence Comey before Congress.
Trump fired Flynn in February amid questions about whether he inappropriately talked about USA sanctions against Russia with a Russian official and then misled Vice President Pence about it.