Rep. Debbie Dingell says Michigan Democratic Senate primary is "gonna be tighter than people think"

Polls have closed in Michigan, where the heated Democratic Senate contest between Abdul El-Sayed and Haley Stevens is coming to a head. Democratic Rep. Debbie Dingell of Michigan joins CBS News to weigh in.

Polls have closed in Michigan, where the heated Democratic Senate contest between Abdul El-Sayed and Haley Stevens is coming to a head. Democratic Rep. Debbie Dingell of Michigan joins CBS News to weigh in.