The Israel PM -- pardon me as I don't know how to spell his name and I'd rather not butcher it -- is going through a very similar process right now, as he needs the peoples support during a time where he's being indicted and it's unknown on if he'll be able to form a government.
I guess we'll see what the document looks like in the coming days.
I don't think he cares about the Jewish vote nearly as much as he does his relationship with Israel. I think its pretty common for American Jews to consider themselves American, with little or no loyalty to Israel. Also, there are only ~7 million Jews in America and half of them live in NY or CA and those that live in other states are mostly Democrats due to Republican anti-immigration stances. (at least that's been my perception after some reading over the years and personal experiences, i'm not going to cite a bunch of sources right now though)
The relationship between Trump, the Kushners and Netanyahu goes back a long time though.
Netanyahu lived in NYC during the 80s when he was the Israel ambassador and became friends with Trumps father, Trump, and Jareds Father. Both the Trump and Kushner companies have decades of history involving real estate, loans, and other other business stuff with Israel.
I mean as I said, it's more about the evangelical Christian vote then the Jewish vote. As most Jewish voters are democrats who feel no political affiliation -- I'm talking about the reformed Jewish ones here, the less religious type. We can assume the more religious you are you'd be more conservative (at least when Jewish, or Christian)
I have some friends who are in areas with a good amount of hasidic Jews, who are VERY conservative. Anecdotal. but yeah.
The evangelical vote is the big thing here, not the Jewish vote.