Trump gave Israel the Golan heights and Jerusalem.
Netanyahu and Trump have been friends for decades. (Netanyahu was friends with Trumps father, he's also Jared Kushners godfather, also, they both need to remain in power to avoid being prosecuted for corruption - that's gotta be some sort of special bond) Although there's a fair counterpoint that Netanyahu and Biden have also been friends for decades.
Netanyahu has long supported Republicans and is now propped up by the most right wing government Israel has ever had.
When Obama was president, Republicans invited Netanyahu to address a joint session of congress without involving Obama at all (same as "fuck you Obama"). The topic? To criticize Obama Iran Nuclear deal.
Last year (or was it this year?), Republicans invited Netanyahu to address a joint session of congress without involving Biden. During the speech, Netanyahu railed against for pushing for a cease fire before Israel could achieve 'total and absolute victory'.
After a meeting between Harris and Netanyahu (maybe a month or two ago?) Harris gave a statement saying she pushed him to "get the deal done", he flipped out and they accused her of lying about the tone of the meeting and claimed her statement emboldened Hamas.
Netanyahu want's Trump to win. I can't believe you would think it's even debatable. Same goes for Putin.