President Barack Obama dropped the mic on his last White House Correspondents' Dinner. But before declaring "Obama out," the president took a few jabs at his inner circle, as well as the candidates vying to replace him. Here are the top 10 jokes from his set. 1. "What is he doing?" The question over whether Obama would address Donald Trump's candidacy was finally answered Saturday night when the president went all in, wondering why the GOP front-runner was absent.