The Race

Democratic Rep. Debbie Dingell heads into Michigan's sixth congressional district August 4 primary unopposed, setting up a fall general election in a southeastern Michigan district that every major forecaster rates as safely in Democratic hands.

Michigan's sixth Congressional District covers the Ann Arbor area and surrounding communities in the southeastern part of the state. The seat is one of 13 U.S. House districts in Michigan, each electing a single representative to the lower chamber of Congress.

Michigan runs a traditional partisan primary system. Each party holds a separate primary on August 4, with the winners advancing to the November 3 general election. There is no top-two or ranked-choice mechanism; the two primaries operate independently, and the nominees face off in the fall. Five candidates across all parties are currently listed on the general election ballot.

Both the Democratic and Republican primaries are uncontested heading into August, with one candidate filed in each. Heather Smiley is the Republican candidate.

The Candidates

Dingell has held the seat since 2015, first representing the old 12th District before redistricting recast it as the 6th. A Georgetown University graduate and former automotive industry advocate, she succeeded her late husband, Rep. John Dingell, who held a House seat for nearly six decades.

She sits on the House Committee on Energy and Commerce and the House Natural Resources Committee. Her Energy and Commerce assignment has placed her at the center of debates over auto industry policy, healthcare access, and environmental regulation, all issues with direct relevance to her southeastern Michigan constituents. In the 119th Congress, her sponsored legislation has included the SAFE for Survivors Act and a bill expanding workplace accommodations for employees dealing with menopause-related symptoms, priorities that reflect her sustained focus on women's health and worker protections.

Smiley is a retired Ford Motor Company executive with more than 30 years at the automaker. Her roles there spanned product development, strategy and planning, business reengineering and transformation, customer service, and analytics. She has also volunteered with the Department of Homeland Security's Cybersecurity and Infrastructure Security Agency in Michigan's region two as a disaster preparedness volunteer.

This is Smiley's second run for the seat; she first ran in 2024.

The Money Behind the Race

Smiley has raised just over $3,400 in total receipts, which stands in stark opposition to Dingell's financing record. According to FEC filings, Dingell has raised almost $1.2 million in total receipts.

Ratings vs. Odds

Cook Political Report, Sabato's Crystal Ball, and Inside Elections all rate Michigan's 6th District as "Solid Democratic," and prediction markets align with that assessment. As of August 3, Kalshi gave Democrats a 99% chance of securing the seat.

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