The orange moron is easily controlled to do what Israel wants. The book of things to blackmail him with is absolutely massive.
Iran and Israel have been in a state of constant war for 40 years. Both nations have done enough atrocities over the years that they both qualify as baddies in my book. There is no good side in that conflict.
https://en.wikipedia.org/wiki/Iran%E2%80%93Israel_proxy_conflict
He is notoriously known to be capricious. So to ensure obedience a little blackmail keeps him in line.