One year after Donald J. Trump was elected for a second time as President of the United States in November 2024, his MAGA movement is in turmoil–and that too on a question that was thought to be an eternal consensus in American domestic politics. Israel has so divided the MAGA camp that its key influencers are framing it as a conflict between “Israel-First” and “America-First” politics, targeting what they call the MIGA–Make Israel Great Again–camp. But the division over Israel is not limited to Republicans; it runs deep among Democrats as well. The Trump movement, which started in 2015, had...