'Are you talking to me?' Donald Trump asked during an extraordinary exchange with Reuters’ White House correspondent Jeff Mason. Trump became angry after Mason asked Trump a question about Ukraine, to which Trump replied: ‘We have the president of Finland. Ask him a question'. Mason responded: 'I have one for him. I just wanted to follow up on the one that I asked you.' Trump's outrage did not subside: ‘Did you hear me? … Ask this gentleman a question. Don't be rude’