Michigan Senate primary: Live results

Michigan voters will cast Republican and Democratic primary ballots Tuesday to determine whom will compete for the state's open Senate seat in November. Polls close at 8pm ET.

Why it matters: Given Michigan's swing state status and the narrowly divided U.S. Senate, November's race will be among the closest-watched in the country.

Zoom in: The Democratic primary slate features U.S. Rep. Elissa Slotkin and businessman Hill Harper.

• The Republican primary includes former congressmen Mike Rogers and Justin Amash, as well as physician Sherry O'Donnell, whose opposition to COVID-19 mandates inspired her start in politics.
• Sandy Pensler, who dropped out to endorse Rogers, will still appear on the ballot.

Catch up quick: The seat came open after U.S. Sen. Debbie Stabenow decided to retire after four terms.