Unless they have skeletons in their closet that could be exposed, there’s really no reason for yet another longshot candidate not to give it a chance.
No Democrat will say they’re running for something else, like vice president or cabinet secretary. But that’s where some of them will end up, if the Democratic nominee beats President Trump.
If Trump wins, some of them are young enough to give it another try in four years. And if that doesn’t happen, they can always become a cable news talking head.