The low polling 1 - 2%’er splitters should take Trump’s advice, on what to do if you’re polling low....and scram.
I took his comment as a hint
I think some of them enjoy the ride until the money dries up and they have to lay off their high paid campaign crony staff and shut down the gravy expense accounts.
So long as money is trickling in their campaign account, they will not quit. It is money to be used for travel, clothes etc. Just like Hillary using the money donated to Clinton Foundation.
Also staying in the lime light, could mean a book offer, or a high level job in the new admin.
Trump has no such desires, so he is different than other career politicians.