-We already know every country (besides Israel) opposes the move. -Threat will make some more determined to vote yes. -Obvious bluff. Saudis voting yes, Trump won't cut aid. -Foreign aid's a cheap way to cultivate relationships. Cutting it would be another foreign policy own goalhttps://twitter.com/nytimes/status/943545410035093507 …
Whose choice? America's. But anyone can have an opinion on America's decision. The US has opinions on other countries' decisions, and regularly expresses them. Smart strategy factors in others' opinions. For crucial national interest, ignore them. But moving the embassy isn't.