CHEYENNE, Wyo. (AP) — Republican Rep. Cynthia Lummis' top challenger in the November election is a political newcomer with little financial backing.

Both Lummis and Democrat Chris Henrichsen won uncontested party primaries on Tuesday.

Lummis is seeking a third two-year term as Wyoming's lone U.S. representative.

She is a member of the House Appropriations Committee. Her previous political experience includes serving in the state Legislature and as state treasurer.

Henrichsen is a political science instructor at Casper College. He is making his first run for public office.

Henrichsen faces a huge disparity in both name recognition and funding. Lummis has raised about $500,000 so far, while Henrichsen has managed only about $16,000.