Rep. Shri Thanedar of Michigan lost his Democratic primary race Tuesday night to a more progressive challenger described as an open socialist state lawmaker.

The defeat removes Thanedar from the contest and adds his name to a growing list of Democrats who have been unseated by candidates further to the left during this midterm election cycle.

The result highlights the continuing influence of progressive and socialist campaigns in Democratic primaries, where incumbent lawmakers face challenges from candidates seeking a more left-leaning direction for the party.