President Trump refused a question from CNN's Jim Acosta at a joint press conference Friday afternoon with UK Prime Minister Theresa May in Buckinghamshire. Earlier in the press conference, Trump called out CNN after receiving a question from NBC News reporter Hallie Jackson. Trump said NBC is "possibly worse than CNN." "Mr. President, since you attacked CNN, can I ask you a question?" Acosta asked Trump. "[FOX News correspondent] John Roberts go ahead," he said. "Can I ask you a question?" Acosta persisted. "No," Trump told him. "CNN is fake news," Trump said. "I don't take questions from CNN. CNN is fake news. I don't take questions from CNN." Acosta brought the press conference to a halt insisting that the U.S. president take his question. Trump tried to move things along by calling on Roberts again. "John Roberts from FOX, let's go to a real network," Trump said "Well, we're a real network too," Acosta said, having the last word.