Sen. James Inhofe (R-Okla.) was projected to easily win a fifth term Tuesday.
The Associated Press called the race at 8 p.m. EST immediately after polls closed.
Inhofe defeated Democratic challenger Abby Broyles, a 31-year-old attorney and television news reporter.
Inhofe’s reelection was unsurprising in a race that Cook Political Report rated as “solid Republican.”
Inhofe, 85, was first elected to the Senate in 1994, having previously served in the House and as mayor of Tulsa. He has been the chairman of the Senate Armed Services Committee since 2018, serving as a key advocate for President Trump’s defense agenda.