Tight primary in Philadelphia district, seen as key test of ‘Mamdani moment’ across US, bolsters Democrats’ left flankUS politics live – latest updatesChris Rabb, an unflinching progressive state representative, declared his campaign for Pennsylvania’s third congressional district was “indomitable” after winning the Democratic primary in a race that became a proxy battle over the direction of the Democratic party.In a significant victory for the party’s left wing, Rabb took roughly 45% of the vote in Tuesday’s contest, comfortably ahead of early frontrunner state senator, Sharif Street, who fell to under 30%, and surgeon Ala Stanford. Continue reading...