Oklahoma Sen. Markwayne Mullin has been tapped to serve in President Donald Trump's administration as the next secretary of the Department of Homeland Security.

The Dow Jones Industrial Average briefly dropped more than 1,000 points after the price of oil spiked to its highest level since the summer of 2024.

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.