Sen. Al Franken (D-Minn.) took the stage at Monday's Democratic National Convention to loud applause, then started with some jokes about Donald Trump. "I'm Al Franken," he began, "Minnesotan, senator, and and world-renowned expert on right-wing megalomaniacs." Franken, who was a comedian and author of books making fun of Fox News and conservatives before being giving up comedy when elected to the U.S.