Flynn also was told by a "very senior member" of Trump's transition team to contact Russian Federation and other foreign governments to try to influence them ahead of the vote.
At the time of Flynn's dismissal, the White House acknowledged only that Flynn had lied to Vice President Mike Pence about what he discussed with the ambassador - sanctions imposed by then-president Barack Obama against Russian Federation for meddling in the election.
President Donald Trump on Saturday said he is not concerned that Michael Flynn, his former national security adviser, is cooperating with a special counselor's investigation after pleading guilty to making false statements to the FBI because there was "absolutely no collusion".
Democratic Rep. Ted Lieu, of California, also reacted on Twitter.
Special Counsel Robert Mueller fired a top FBI investigator from his team over the summer after learning that the agent sent potentially anti-Trump messages to a colleague, sources tell ABC News. He is a good guy.
Cboe submits product certification for bitcoin futures
The agency said the exchanges agreed to modify the derivatives contracts and promised to coordinate with the CFTC and each other to guard against market manipulation and other irregularities.
Steve Vladeck, a CNN legal contributor and professor at the University of Texas Law School, said Trump's tweet "certainly implies that, at the time the President fired then-FBI Director Comey, he knew that Flynn had committed a felony".
The breakthrough announcement came just a little over a month after the October 30 Mueller indictment against former Trump campaign chairman Paul Manafort and former campaign official Rick Gates and a plea deal with George Papadopoulos.
Feb 13: Flynn resigns over reports that he misled the White House about his contacts with Russian Federation.
Jan 20, 2017: Mr Trump takes office and Flynn becomes national security adviser.
RBS and Natwest bank branches to close with hundreds of jobs lost
RBS, still 72 per cent owned by the taxpayer, hopes to limit the number of redundancies to 680 by redeploying the remaining staff. The two branches in Shropshire are part of 197 Natwest and 62 RBS outlets being shut down by Royal Bank of Scotland.
So far, four people have been charged as a result of Mueller's investigation.
According to that same memo, Trump specifically told Comey in that conversation that Flynn had done nothing wrong.
"Can you talk about what Michael Flynn might tell the special counsel?" a reporter asked Saturday morning as Trump crossed the White House lawn on his way to a fundraiser in New York City.
As acting attorney general at the end of the Obama administration, Yates and another Justice Department official went to the White House on January 26 to warn White House counsel Don McGahn that Flynn was potentially compromised and vulnerable to blackmail because of discrepancies between the public accounting of the Kislyak conversation and what actually occurred.
As part of his plea on Friday, Mr Flynn agreed to cooperate with the investigation. Still, Trump has made clear that the probe preoccupies him and he wants it gone.
Chinese actress Liu Yifei cast as Disney's Mulan
Disney cast Chinese superstar Liu Yifei as Mulan in the upcoming live-action remake of the beloved 1998 animated film. Most recently, Scarlett Johansson played a character originally Japanese in the film Ghost in the Shell .
Strzok also worked on the probe into Hillary Clinton's use of a private email server while serving as secretary of state.