That's because for the first time in many many years they don't know who to buy yet. This whole lousy crowed in Washington needs to go. I do believe it will be done in one of two ways. It's either the ballot box or the ammo box. I would prefer the former rather than the latter but one way or the other, the hand writing is on the wall.
Bingo, someone who gets it. These mega donors couldn't care less about a politician's party affiliation. Ideology is irrelevant. They are interested in only one thing - access and influence. Their money always goes to the candidate they think most likely to win, and that is their only criteria.
This is one of the unsung major advantages of DJT - he doesn't need their money, so they can't buy either access or influence the traditional way with campaign donations. Whatever it is they want - cheap labor through open immigration, judicial appointments favorable to their industry, even punishing regulations levied against their competitors (Obama's specialty) - will now have to be argued on it's own merits in order to convince Trump to act on it.