Mattis Takes Swipe At Trump: 'I Earned My Spurs On The Battlefield'

President Trump fired him (after he submitted his resignation) and earlier this week reportedly called him "the world's most overrated general," but former Defense Secretary Jim Mattis had a few barbs of his own to sling in a speech he gave in New York on Thursday.

Delivering the keynote address at the 74th Alfred E. Smith Memorial Foundation Dinner, Mattis — a retired four-star U.S. Marine general — said he felt he had finally "achieved greatness."

"I'm not just an overrated general, I am the greatest, the world's most overrated," he said to laughter.