Michigan Democrats are set to gather Friday to show unity behind their statewide candidates. This comes three days after a heated U.S.

Michiganders head to polls in a contentious Democratic Senate primary between the progressive Abdul El-Sayed and the more moderate U.S. Rep. Haley Stevens.

Michigan will offer the country its clearest gauge yet on the direction of the Democratic Party, as primary voters in the battleground state choose between a progressive…