Sen. Markwayne Mullin praised his friendship with a union boss he once threatened to fight during a Senate confirmation hearing Wednesday for Lori Chavez-DeRemer, President Donald Trump’s ...

Oklahoma Republican Sen. Markwayne Mullin told NBC's "Meet The Press" that he agrees with the Trump administration that the U.S. should only remain part of the NATO Alliance as long as it is in ...

Sen. Markwayne Mullin (R-OK) insisted that Pete Buttigieg "has no right to say anything" about plane crashes — despite his experience as the nation's former secretary of transportation.

Sen. Markwayne Mullin (R-Okla.) on Tuesday referred to Canadian Prime Minister Justin Trudeau as “governor,” as the senator defended President Trump’s tariffs against the neighbor to the north.

Sen. Markwayne Mullin has been ceaselessly tweeting the last few weeks, providing real-time updates on nominees confirmed to President Donald Trump’s administration. “It gives me something to ...

Sen. Markwayne Mullin (R-Okla.) said Sunday that President Trump was joking when he floated running for a third term, adding he could not seek to change the Constitution without the consent of voters.

Markwayne Mullin (R-Okla.) are friends. Why it matters: Mullin touted his newly forged bond with O'Brien at a Wednesday Senate hearing for former Oregon Congresswoman Lori Chavez DeRemer ...