Everyone—and by "everyone" I mean "a bunch of guys on my Twitter feed"—is up in arms about something Donald Trump said today about John McCain:

He's not a war hero….He's a war hero because he was captured. I like people that weren't captured.

And then he reiterated the point:

I don't buy the war hero thing. Anybody can be captured. I thought the idea was to capture them. As far as I'm concerned he sat out the war.

Oh, wait. Sorry. That second quote came from Al Franken 15 years ago. So that's where Trump gets his material.

Bill Kristol says if Trump doesn't apologize for his McCain crack, this will be the "beginning of the end" for his presidential campaign. Given Kristol's spotty record as a prognosticator, that might be a good reason to expect Trump to stick around a long time. But if he is on his way out, maybe he'll head to the Senate instead.