Markwayne Mullin (R-Okla.) is being mocked on social media after saying he’d “lay down cover fire” in defense of embattled ...

Sen. Markwayne Mullin, R-Okla., shared a health update regarding his son, Andrew, who has been at the Mayo Clinic in Rochester, Minn., as doctors try to determine the cause of a possible mystery ...

Sen. Markwayne Mullin also "joked" about settling political disagreements with caning ALLISON ROBBERT/AFP via Getty A Republican senator suggested violence against journalists could deter "fake news." ...

In a video, he said his son Andrew Mullin has lung growths that "keep getting progressively worse," so they're at the Mayo Clinic this week.

Oklahoma’s Sen. Markwayne Mullin posted a video on X Saturday from inside the U.S. Capitol. In the clip, he recounted the shooting of Kentucky Congressman William Taulbee by a news reporter in 1890.

Oklahoma GOP Sen. Markwanye Mullin on "FOX News Sunday." MULLIN: Well, here's what you have, is you have a president in the White House as a businessperson, not a career like -- career politician.