Democratic state Rep. Josh Turek and Republican U.S. Rep. Ashley Hinson won their respective primary elections on Tuesday, June 2, 2026 [1].

The results set the stage for a general election to fill the open U.S. Senate seat previously held by Sen. Joni Ernst [2]. The contest represents a critical opportunity for Democrats to capture a seat in a state where Republicans aim to maintain their hold [3].

Turek secured the Democratic nomination after defeating Zach Wahls in a competitive primary [4]. His victory positions the state representative as the party's candidate to flip the seat in the upcoming general election.

On the Republican side, Rep. Ashley Hinson secured the GOP nomination after defeating Jim Carlin [5]. Hinson's win ensures that the Republicans will defend the seat with a sitting member of the U.S. House of Representatives.

The primary elections took place across Iowa on June 2, 2026 [1]. These votes were the final step in narrowing the field for both parties as they prepare for the general election cycle.

Both candidates now shift their focus toward the broader Iowa electorate. The race to replace Sen. Ernst will be a focal point of the state's political landscape as both parties deploy resources to secure the seat [3].

Josh Turek and Ashley Hinson won their respective primary elections on Tuesday, June 2, 2026.

The matchup between Turek and Hinson creates a contrast between a state-level legislator and a federal representative. Because the seat is open, the general election will lack an incumbent's advantage, potentially making it more volatile than a standard reelection bid and increasing the likelihood of a high-spending nationalized campaign.