Will Lawrence, a co-founder of the Sunrise Movement, has won a Democratic House primary in a crucial Michigan battleground district. This upset victory is concerning for party leaders who fear his progressive stance will hinder his chances in the general election. Top House Democrats had previously questioned Lawrence's ability to defeat Republican Tom Barrett in the 7th District. However, progressives argue these concerns are based on outdated notions of electability. Lawrence secured his win against former Ambassador Bridget Brink and ex-Navy SEAL Matt Maasdam. The primary outcome, feared by party leaders, saw Maasdam and Brink divide the moderate vote, benefiting Lawrence. The race highlighted a split within the Democratic establishment, with different factions endorsing Brink and Maasdam. Lawrence's victory is part of a broader trend of progressive candidates defeating establishment choices in swing districts this cycle. Similar upsets occurred in California, where Randy Villegas beat Jasmeet Bains, and in Maine, where Matt Dunlap won against Joe Baldacci. The Democratic Congressional Campaign Committee supported Bains and Baldacci but remained neutral in the Michigan race.