Even before he was president, Barack Obama enjoyed showing off his sense of humor. Since getting elected to the White House, President Obama has joked with Jimmy Fallon and Stephen Colbert, done off-center interviews for Buzzfeed and YouTube and played ball with an interviewer who jokingly asked him, “What’s it like to be the last black president?” The wacky, funny asides have earned Obama plenty of negative attention, but they’ve also drawn a lot of focus to his policies. Here’s a look back at some of the most memorable moments in the career of Barack Obama, comedian: Nov. 3, 2007:...