 Sometimes you have to take on the biggest decision in politics, which is that you have to tell your leader it's the time for them to stand down. It's really hard. Political parties find it very, very hard. Because you respect the person for what they've achieved. Joe Biden's the only man in American politics who's ever beaten Donald Trump. The only man or woman. The only person. The only politician. No Republican's ever beaten Trump. No Democrat's ever beaten Trump apart from Biden. He's got pride. He should be proud.