WATCH LIVE: President Trump Participates in Ceremony to Swear in Markwayne Mullin as DHS Secretary – 1:30 PM ET

President Trump will participate in the swearing-in ceremony for former Senator Markwayne Mullin (R-OK) to serve as Homeland Security Secretary this afternoon. 

Mullin submitted his resignation from the US Senate on Monday after the Senate voted to confirm him as DHS Chief.

The Senate voted 54-45 to confirm Mullin to replace former DHS Secretary Kristi Noem.

JUST IN: Senate Votes 54-45 to Confirm Markwayne Mullin as DHS Chief – One Republican Votes No (VIDEO)

Trump fired Noem earlier this month and immediately announced that Mullin would become the next Secretary of Homeland Security.

The then-Senator accepted the nomination, saying he looks forward to "carrying out President Trump’s mission alongside the department’s many capable agencies and the thousands of patriots who keep us safe every day," in a statement on X:

As a kid from Westville, it has been the greatest honor and privilege to serve the people of Oklahoma for the past thirteen years in both the House and Senate.

I am grateful to President Trump for nominating me to lead the U.S. Department of Homeland Security. I look forward to earning the support of my colleagues in the Senate and carrying out President Trump’s mission alongside the department’s many capable agencies and the thousands of patriots who keep us safe every day.

President Trump ran on restoring law and order, and he quickly delivered the most secure U.S. border in American history. I look forward to supporting @POTUS’ mission to safeguard the American people and defend the homeland.

As a kid from Westville, it has been the greatest honor and privilege to serve the people of Oklahoma for the past thirteen years in both the House and Senate.

I am grateful to President Trump for nominating me to lead the U.S. Department of Homeland Security. I look forward to…

— Markwayne Mullin (@SenMullin) March 5, 2026

Mullin is set to be sworn in during an Oval Office ceremony at 1:30 PM ET, and he is expected to take questions alongside President Trump about Homeland Security's mission under the new leadership.

UPDATE: The ceremony is delayed but will be starting momentarily.

Watch live below:

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