Trump decided to keep his campaign pledge, despite warnings from Mattis and Tillerson that the move would endanger US diplomats, undermine the peace process, and be condemned in both Arab countries and America’s most important Eurpean allies. Domestically, Trump has little to worry about. Democrats have fawned over Israel for 70 years, the Republicans’ Christian Evangelical base supports the embassy move, and the GOP has been desperate to break into what was once a Democrat-only monopoly on Jewish-American political funding—and Jewish votes…