"If Israel has the wrong Leader, which would be anyone other than Bibi, America will have to do this work ourselves, and I am not inclined to do so"
So, he's threatening Israelis if they don't vote Bibi he's gonna let Israel handle Iran on its own.
I can't express how damaging this is to the chances of replacing Bibi, very difficult moment for those of us in Israel who wanted to see him go - or in the very least wanted to see a neutral election where the leader of the free world doesn't intervene and threaten them to vote Bibi or else.