Obama warned Trump against hiring Flynn in Oval Office meeting

Flynn was previously fired as head of the Defense Intelligence Agency.

— -- President Barack Obama warned then-President-elect Donald Trump not to hire retired Lt. Gen. Mike Flynn as his national security adviser during their 90-minute Oval Office meeting last November, two former Obama administration officials confirmed to ABC News.

The warning was first reported by NBC News on Monday morning, just hours after Trump utilized Twitter to cast blame on the Obama administration for giving Flynn his security clearance.

At Monday afternoon's White House press briefing, Press Secretary Sean Spicer said that Trump didn't disclose the specific details of his meeting with Obama, but Spicer said the reports were no surprise because "President Obama made it known that he wasn't exactly a fan of General Flynn's."