President Trump’s failure to ram through a Republican-friendly House map was a new sign that his iron grip on the party has slipped, and was likely to reverberate nationally.
Republican members of the Indiana Senate voted on Thursday to reject an effort led by President Trump to pass a congressional map that would have given the party two extra House seats.
The speaker has repeatedly lost his grip on the House floor thanks to a once rare parliamentary maneuver that G.O.P. members are increasingly using to force action on legislation.
Republicans hold an overwhelming majority in the Indiana Senate, but more than a dozen of them defied the president’s wishes, voting against a map aimed at adding Republicans in Congress.