 All of the energy they need to muster their angst towards going to the White House and saying, you've got to do something, you've got to get out of this race, you're going to cost us. And if Joe Biden says no this week, the conversation moves to Donald Trump. It moves to a Republican convention. It moves to a Republican vice presidential pick. No one knows who it's going to be. It moves in ways that the rest of the Democrats don't.