Sen. MarkWayne Mullin (R-Okla.) joins CNBC's 'Special Report' as President-elect Donald Trump is inaugurated as the 47th U.S.

Sen. Markwayne Mullin (R-OK) previewed Senate action in anticipation of Pete Hegseth’s confirmation to be defense secretary, ...

Sen. Markwayne Mullin (R-Okla.) said on Wednesday that Democrats who voted for the Laken Riley Act are “playing politics.” ...

Sen. Markwayne Mullin electrified a Senate confirmation hearing on Tuesday by accusing fellow senators of carousing and ...

Maybe instead of advocating for bipartisanship, Americans ought to pivot to demand breath tests before roll calls, says ...

Oklahoma Sen. Markwayne Mullin accused his colleagues of voting while drunk during a heated confirmation hearing for ...

A group of Republican senators introduced legislation that would restrict the purchase of land near U.S. military installations by foreign adversaries.The lawm ...

Sen. Markwayne Mullin asked his fellow senators on the Armed Services Committee whether they would meet the standards they ...

U.S. Sen. Markwayne Mullin said it's hypocritical to reject Trump's Defense pick: "How many senators have shown up drunk to ...

U.S. Sen. Markwayne Mullin, a former professional MMA fighter, told conservative commentator Benny Johnson that he and ...

Republican Sen. Markwayne Mullin tried to defend Hegseth against allegations of sexual misconduct and alcohol abuse. It ...