Republican-controlled Congress is pushing back against Trump on Iran war and a $2 billion compensation fund for his allies—marking an unprecedented shift from months of deference. Congressional Editor Julie Hirschfeld Davis explores whether this rebellion signals durable independence or temporary defiance that will fade before November's midterms. Republicans began rebelling after Trump intervened in primaries against popular senators like John Cornyn and Bill Cassidy, creating political incentive for defiance rather than loyalty.