text:  And with that, Seth Walton became the third Democrat to demand the president step down. He told me he didn't expect tons of his colleagues to join him and follow suit, even though so many of them agreed that Biden should step aside. That's just how Congress works, he says. He's in other situations where his colleagues agree on important stuff behind the scenes, but don't take a public stand. I didn't frankly expect a lot of people to jump right in with me. But, I mean, I'm sorry to admit that.