Flynn has since tried to withdraw his plea, saying he is a victim of misconduct.
The Department of Justice has said it was not persuaded that the interview with Flynn about his conversations with Kislyak "was conducted with a legitimate investigative basis."
On Thursday, after the DOJ moved to drop charges against Flynn, Trump called him a "warrior" although Obama has expressed his concern at the decision.
"The news over the last 24 hours I think has been somewhat downplayed, about the Justice Department dropping charges against Michael Flynn," the former president said.
Obama also appeared to take aim at the White House's coronavirus response and gave a prediction of what the upcoming election battle would be like.
"It's part of the reason why the response to this global crisis has been so anemic and spotty.
Newsweek has contacted the White House and the Department of Justice for comment. »