Markwayne Mullin represented Oklahoma in the U.S. Senate from 2023-2026. He previously served in the U.S. House of Representatives. He identifies as a Republican.
2016
–Endorsed Marco Rubio (R) for President (lost primary)
–Endorsed Donald Trump (R) for President (won)
2020
–Endorsed Donald Trump (R) for President (lost general election)
–Endorsed Jim Inhofe (R) for Senator of Oklahoma (won)
–Endorsed Tiffany Shedd (R) for Representative of Arizona, 1st District (lost general election)
–Endorsed Beth Van Duyne (R) for Representative of Texas, 24th District (won)
2022
–Endorsed James Lankford (R) for Senator of Oklahoma (won)
–Endorsed Cory Mills (R) for Representative of Florida, 7th District (won)
–Endorsed Harriet Hageman (R) for Representative of Wyoming, At-Large District (won)
2024
–Endorsed Donald Trump (R) for President (won)
–Endorsed Brian Bingman (R) for Corporation Commissioner of Oklahoma (won)
–Endorsed Kari Lake (R) for Senator of Arizona (lost general election)
–Endorsed Tim Sheehy (R) for Senator of Montana (won)
–Endorsed Sam Brown (R) for Senator of Nevada (lost general election)
–Endorsed Christine Serrano Glassner (R) for Senator of New Jersey (lost primary)
The Endorsement Project 