Trump said he is appointing Kristi Noem to serve as his "Special Envoy for The Shield of the Americas" as he announced her ouster from the Department of Homeland Security

The Oklahoma senator tapped as the new secretary of Homeland Security spent time as a Mixed Martial Arts fighter.

U.S. President Donald Trump says he should be involved in choosing Iran’s next supreme leader.

President Donald Trump announced on Truth Social that Oklahoma Sen. Markwayne Mullin will be named the next the secretary of the Department of Homeland Security.

Leaders from across Oklahoma are reacting to the news, congratulating the junior Republican senator from Oklahoma.