text:  This is CBS News on the Hour, sponsored by Progressive Insurance. I'm Peter King. It's a weekend of campaigning and fundraising for President Biden in New Jersey and in New York's Hamptons, as many fellow Democrats say he should leave the race because of Thursday night's debate performance. Biden says he's in the race to stay. Correspondent Major Garrett says detractors can't push him out. Democratic National Committee rules are very clear on this. Unless Biden steps down, there's no mechanism to deny him the nomination. There is no eject button.