text:  I think Joe Biden and the Democrats made a big mistake by saying, let's have a debate early. Let's do it in June. Let's do it before the conventions. Let's let CNN host it. Let's do it with muted microphones. They thought they were being clever, but they were too cute by half because what they've ended up doing is creating a forum that really will work to Donald Trump's advantage. Trump is at his best when he's under attack.