Spoiler alert: This would have most likely happened regardless of the D or R next to the president’s name on the ballot.
There’s two reasons I could see the US supporting Israel regardless of who’s in charge: the logical one because it has historical precedent is that the US wants Israel as a buffer for Russia due to it’s strategic location in the Middle-East, and the other reason is more conspiracy theory but I wouldn’t be surprised if the US can somehow get access to Palestine’s oil if Israel beats the shit out of the Hamas.