I assume she got into it for a combination of money, prestige, and party over country and it's far, far too late to turn back now. She goes down with the ship because the things she's said to get here mean nobody else will take her.
Being brought in to help presidentify the GOP nominee would have made sense from the perspective of being invested in seeing conservatives in control. It probably meant a ton to her polling firm. Her willingness to play exactly the kind of female Trump likes would give her some level of influence. She ultimately goes down in history as the first female to lead a successful presidential campaign, something she's tried to cite a couple of times for feminist credit only to be reminded that her candidate was a trash fire.
This far into things, her only choices are stick with Trump or fade into obscurity. Any sort of credibility she had in the political sphere has to be gone after the things she's said, so her only hope going forward is to try and keep the Trump admin going.
