Markwayne Mullin, the U.S. Senator from Oklahoma, was recently tapped by PresidentDonald Trumpto serve as Secretary of theUnited States Department of Homeland Security, replacingKristi Noemfollowing a shake-up in the administration.

President Donald Trump announcedthat Oklahoma Senator and undefeated MMA fighter Markwayne Mullin will lead the Department of Homeland Security (DHS) effective March 31.

The move,announced via Truth Social,signals a massive escalation in Trump’s war against the open-border radicals and “deep state” bureaucrats who have tried to sabotage the America First agenda.

“I am pleased to announce that the Highly Respected United States Senator from the Great State of Oklahoma, Markwayne Mullin, will become the United States Secretary of Homeland Security (DHS), effective March 31, 2026. The current Secretary, Kristi Noem, who has served us well, and has had numerous and spectacular results (especially on the Border!), will be moving to be Special Envoy for The Shield of the Americas, our new Security Initiative in the Western Hemisphere we are announcing on Saturday in Doral, Florida,” Trump said.

If Mullin is confirmed and leaves the Senate,Kevin Stitt, the Republican governor of Oklahoma, will be required to appoint a temporary replacement to serve until voters choose a senator in the next election.

Under Oklahoma law, Governor Kevin Stitt will have 30 days to appoint a temporary U.S. senator to fill the vacancy until voters decide the seat in the next election.

The appointee will serve only briefly and is expected to sign an oath promising not to run for the seat in the upcoming election, a measure designed to prevent the advantages of incumbency in the race.

Speculation is rampant about who Stitt might choose. Here’s a breakdown of the potential candidates, according to multiple outlets:

U.S. Rep. Kevin Hern:Hern who represents Oklahoma’s 1st Congressional District and chairs the Republican Study Committee.

Dustin Hilliary:A senior advisor to Governor Stitt, communications executive, and CEO of a telecommunications company.

Source: The Gateway Pundit