In London, President Donald Trump abruptly canceled a scheduled news conference and left the NATO summit early, after a video went viral showing other world leaders mocking him. In the video, which has been viewed millions of times, Canadian Prime Minister Justin Trudeau, French President Emmanuel Macron, Dutch Prime Minister Mark Rutte and others are seen smiling and laughing as they appear to discuss Trump’s lengthy press conference and how even his closest officials are often surprised by Trump’s seemingly erratic behavior. The private conversation was caught on a hot mic and then posted online by the Canadian Broadcasting Corporation.