In conservative Utah, the first black female Republican in Congress is trying to fend off a strong challenge from a well-known Democratic mayor in a largely suburban district where many are wary of President Donald Trump.
U.S. Rep. Mia Love has separated herself from the president on immigration and trade while challenger Ben McAdams criticizes her record and pitches himself as a moderate in the tight race.
And observers say a hotly contested medical-marijuana proposal could become a down-ballot wild card.
Democrats are hoping McAdams can flip the seat by painting Love as a pro-Trump partisan while keeping himself firmly on middle ground.
Love, considered a rising star in the GOP, is warning voters that Democratic control of the House could undermine Republican-backed federal tax cuts and other priorities.