A USA official told The Associated Press that Flynn was in frequent contact with Ambassador Sergey Kislyak on the day the Obama administration slapped sanctions on Russian Federation for election-related hacking, as well as at other times during the transition.
Flynn resigned late Monday after he reportedly lied to Vice-President Mike Pence about discussing the possible softening of Russian sanctions with the Russian ambassador.
Since the Washington Post reported Thursday that Flynn discussed sanctions with the Russian ambassador to the United States before Trump's inauguration, Democrats have called for his firing.
In that and a series of other morning tweets Wednesday, Trump appeared to be trying to distance himself from any appearance of close ties with Russia following published reports that us agencies had intercepted phone calls a year ago between Russian intelligence officials and his 2016 campaign team.
Multiple sources connected to the intelligence and law enforcement communities are reporting that Trump's top advisers maintained constant contact with Russian officials, according to a report by CNN, despite constant refusals from the Trump campaign.
Speaking to reporters from the White House Tuesday, Press Secretary Sean Spicer said the late-night resignation of National Security Advisor General Michael Flynn came after an erosion of trust with President Trump and Vice President Pence.
"This is larger than Flynn", Rep. Joseph Crowley of NY, chair of the House Democratic Caucus, told reporters in Washington on Tuesday, according to The Hill.
The Trump team's account of Flynn's discussions with the Russian envoy changed repeatedly over several weeks, including the number of contacts, the dates of those contacts and, ultimately, the content of the conversations.
When Mr. Spicer was asked at the news briefing if the president knew Flynn might have planned to discuss sanctions with the Russian Ambassador Sergey Kislyak, Spicer replied: "No, absolutely not".
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Several House Democrats had already called on Oversight Committee Chairman Jason Chaffetz to launch an investigation into Mr Flynn's ties to Russian Federation.
Trump is considering whether to retain Flynn in his White House position. Less than an hour later, Spicer issued a statement saying that Trump was "evaluating the situation".
Donald Trump, then a presidential candidate, jokes with retired Gen. Michael Flynn as they speak at a rally on October 18, 2016 in Grand Junction, Colo.
Of course, this statement was in direct contradiction to a statement made shortly before that by Kellyanne Conway during an interview with MSNBC in which she said that Flynn had the "full confidence of the president".
"Gen Flynn is a wonderful man". Does that mean if Flynn hadn't dissembled on the subject Trump wouldn't have minded if he had talked substance with the Russians?
The US leader said retired army general Flynn had been treated "very, very unfairly by the media", including what he called "fake media". The Kremlin, however, denied any talks on lifting the restrictions with Flynn or any other U.S. official. The bottom line here is - this is a loss for the President because there was a time when he really trusted Flynn.
Jervis suggests an "incredibly disorganized" White House is being managed by "a gang that can't shoot straight".
January 13: Sean Spicer, then a Trump transition spokesman, said Flynn did not discuss sanctions with the Russian envoy, adding they spoke to arrange a call between Trump and Putin following the inauguration.
"This was an act of trust - whether or not he misled the vice president was the issue and that was ultimately what led to the president asking for and accepting the resignation of General Flynn", said Spicer.