Key facts
- Oklahoma Republicans are voting in a primary election for an open House seat.
- The seat is being vacated by Rep. Kevin Hern, who is running for Senate.
- Markwayne Mullin has been selected to lead the Department of Homeland Security.
- Several Republican candidates are vying to replace Hern in the district.
- Other incumbent representatives are seeking reelection and are expected to win.
- Polls will close at 8 p.m. EDT.
Oklahomans are participating in House primary elections on Tuesday, including a key race for an open seat. Rep. Kevin Hern (R) is vacating his House position to pursue a Senate run, creating a competitive environment for Republicans seeking to replace him in the solidly red district. The article notes that former Sen. Markwayne Mullin has been chosen to lead the Department of Homeland Security. Incumbents in Oklahoma's other three House districts are also running for reelection and are anticipated to maintain their seats within the GOP.
Polls are scheduled to close at 8 p.m. EDT, with live results expected to be available.