"Yeah, that definitely happened," a giddy Oliver said on Last Week Tonight. "Donald Trump isn't going to be president anymore." He added: "It was like that all day here in New York. There was a mood here that can only be described as a reverse 9/11. Why? Because it combined complete euphoria, an abiding disgust for Rudy Giuliani and this time, people were actually dancing on the rooftops in New Jersey. It was a really good day. Never forget."