As the junior senator from Oklahoma, Sen. Markwayne Mullin (R-OK), 47, has amassed an unusual level of clout in a chamber ...

On Thursday, the GOP-controlled Senate Health, Education, Labor, and Pensions (HELP) Committee voted to move forward her ...

Last Sunday, U.S. Sen. Markwayne Mullin, R-Okla., appeared on NBC’s “Meet the Press” and he was asked to respond to several news stories from Oklahoma outlets about the cuts being made 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.

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.

Sen. Markwayne Mullin (R-OK) underscored how the recent cuts to the federal government are needed so it can address the national debt of the United States. “I don’t want anybody to lose their ...

Oklahoma Sen. Markwayne Mullin led the charge on NBC, saying that "every successful business owner" understands the haphazard and legally suspect cuts that Musk is making to the federal government.

Sen. Markwayne Mullin (R-OK) declined to designate Vladimir Putin a “war criminal” during a Sunday interview with NBC News and was confronted with comments from his Republican Senate ...

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 ...