Everybody's a critic, but the people who attend President Trump's rallies are specifically media critics, CNN chief White House correspondent Jim Acosta told Stephen Colbert on Wednesday's Late Show. Acosta famously sparred with White House Press Secretary Sarah Huckabee Sanders last week over whether the press is an "enemy of the people," but he's long been a celebrity of sorts at Trump's rallies — attendees, up to and including the president, frequently single him out for abuse.