But the outcome of the Democratic primary makes it clear there is a stark divide among Democratic primary voters and the qualities they want to see from a sitting senator. In Missouri's 1st Congressional District, Rep. Wesley Bell won a rematch against former Rep. Cori Bush. Bill Pugliano / Getty Images LANSING MICHIGAN - AUGUST 4: Voters go to the polls to cast their ballots in the Michigan Primary election on August 4, 2026 in Lansing Michigan. Trump's influence remains strong with RepublicansTrump-backed candidates in Washington state, Kansas and Michigan won their party's nomination. In Michigan, Republican Rep. John James won the nomination.