Trump-loving Sen. Markwayne Mullin struggled through a CNN interview about the Trump administration’s plans for Iran before ...

Trumpy Sen. Markwayne Mullin contradicted himself on live television while defending a federal immigration agent who fatally ...

Sen. Markwayne Mullin (R-Okla.) defended the federal immigration officer who fatally shot Renee Nicole Macklin Good on ...

Longtime Oklahoma attorney and minister Jim Priest has entered the race for the U.S. Senate, seeking the Democratic ...

The staunch Trump supporter believes all Americans should be thankful for the president's efforts to keep China and Russia ...

On a recent trip to Bahrain, Qatar and Azerbaijan, Sen. Mullin advocated for investment in Oklahoma and Oklahoma companies.

Sen. Markwayne Mullin (R-Okla.) joins 'Squawk Box' to discuss President Trump's Venezuela strategy following the capture of ...

Oklahoma Senators James Lankford and Markwayne Mullin are introducing a proposal that would add harsher sentences to people ...

TULSA, Okla. — Protestors gathered outside of Markwayne Mullin’s Tulsa office on Thursday to protest against U.S. Immigration ...

Sen. Markwayne Mullin (R-OK) said the only reason one would protest President Donald Trump is if one had a “deranged hatred” of Trump. Republicans have been drawing a fair amount of attention to the ...

Republican Oklahoma Sen. Markwayne Mullin said Tuesday that Senate Minority Leader Chuck Schumer privately urged Democratic senators to delay reopening the government until after Election Day.

Add Sen. Markwayne Mullin (R-OK) to the list of prominent Republicans who say they “don’t know anything” about President Donald Trump’s pardon of the billionaire founder of a cryptocurrency exchange.