Trump's recent pledge to declare Jerusalem the capital of Israel and move the US embassy there broke years of precedent and has caused plenty o' controversy around the world. He's expected to sign a waiver to at least keep the US embassy in Tel Aviv for another six months, but the announcement has already caused a surge in violence in the region, chaos internationally, and...you know, general anxiety from people who'd rather not be involved in WWIII.
Well the issue rightfully matters a great deal to people living in the region, specifically Palestinians and advocates of a two-state solution who worry this will be a MASSIVE hindrance to creating a lasting peace between Israelis and Palestinians. Since the Six-Day War in 1967, the city of Jerusalem has been under Israeli control, but many Palestinians and members of the international community see East Jerusalem as the likely capital of a future Palestinian State. Trump's directive puts that plan in peril.
The issue is actually far from settled WITHIN Israel, making the situation all the more delicate. Embassies are located in Tel Aviv because of a 1980 United Nations directive aimed at protecting the peace process. The directive demanded embassies be moved out of Jerusalem after Israel passed a law declaring Jerusalem the "united" capital of Israel without international consent.
Anyway, you get it. The real question is: Why does Trump care? There's no diplomatic advantage to this change and it's likely to put actual lives in danger as the resulting unease escalates into violence on both sides.
Um, duh. IT'S ABOUT MONEY. Why else?
GOP donors are an eclectic bunch, and among them is a select group of very conservative Jewish zillionaires who care immensely about this issue. Chuck Schumer, another embassy-moving advocate, has some of these guys on his payroll, but the GOP has their chief: Sheldon Adelson, CEO of Las Vegas Sands. (Yeah, they're a tacky bunch.) Adelson likes low taxes and pro-business policy as much as the next rich guy, but his main demand has long been this: move the US embassy in Israel. In 2016 he pledged $100 million to Trump's campaign and...all that money had to pay for something right?