By Tim ReidWASHINGTON, Aug 4 (Reuters) - Polls began closing in Michigan on Tuesday in a Democratic U.S. Senate primary that has emerged as one of the clearest tests yet of the direction of the Democratic Party ahead of the 2028 presidential race.The contest pits Abdul El-Sayed, a progressive former public health official who has called for ending unconditional U.S. military aid to Israel, against U.S. Representative Haley Stevens, a moderate backed by Democratic leaders and pro-Israel groups.

Progressive Arab-American Senate candidate Abdul El-Sayed faces off against moderate Haley Stevens

Michigan voters will decide a competitive Democratic U.S. Senate primary Tuesday in a contest that will have major implications for control of the chamber next year.