There's nothing to gain for the US. It will likely cause more strife in the middle east (Trump seems to want more strife in general - Part of Bannon's plan to cause chaos) It will cause the right wing in Israel to like Trump more just as it causes the right wing in the US to like Trump more. Another Zero gain, as Israel is our lapdog in the middle east and not the other way around - they wouldn't exist in current configuration, if not for our votes in the UN.
There are no benefits for the US. It could be argued, if you're the type who likes us involved in everything middle east, that an Israeli state is a good thing - since it allows us to project power in the middle east, but we already have that without this move.
This does nothing but pump up Trump's dumb supporters. That's all it's designed to do. He has to create reasons to support him, since Republican policies in general could attract no rational votes - other than from Billionaires and corporations. So they have to come up with garbage like this, guns, babies - whatever. Whatever separates their stupid supporters from their jobs/money.
