The Wedding Crashers star supported GOP candidate Ron Paul in 2008 and 2012. Back in '04, his friend and costar Owen Wilson told USA Today the pair were almost turned away after they attempted to crash a Young Republicans' gathering. Event organizers wouldn't let Vaughn enter because they didn't believe he was actually conservative. "They saw me and said, 'Come on in,'" Wilson revealed. "But to Vince, they said, 'We know you're not a Republican.'"