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Who is Alan Armstrong, Oklahoma's next US Senator?

Armstrong was appointed to serve in Oklahoma’s vacant Senate seat until voters elect a permanent successor.

Who is Alan Armstrong, Oklahoma's next US Senator?
Image · KOCO

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Outlet credibilityKOCO76/100 HIGH
This article1 analysis · Oct 8, 2026
KOCO
Mar 24, 2026
tl;dr

Gov. Kevin Stitt appointed oil and gas executive Alan Armstrong to fill Oklahoma’s vacant U.S. Senate seat after Markwayne Mullin was confirmed as Homeland Security secretary. Armstrong must be sworn in and cannot run in November’s election for the seat.

Community verdict

VOTING CLOSED
How does this story look for
Alan Armstrong R · OK · SEN
NOT RATEDCLOSED

No good or bad look here

This story reports what happened without casting Armstrong in a good or bad light, so readers don’t rate it and it doesn’t count toward Armstrong’s record.

● INFORMATIONAL

People in this story

SWIPE →
Alan Armstrong
R · OK · SEN

Oil and gas executive appointed to fill Oklahoma’s vacant U.S. Senate seat

PRIMARY SUBJECT
Kevin Hern
R · OK-1

Oklahoma representative and candidate for the Senate seat

Donald Trump
R · President of the United States

President who selected Mullin as Homeland Security secretary

Kristi Noem
Former U.S. Representative (R-SD)

Homeland Security secretary whom Mullin is set to replace

Markwayne Mullin
Secretary of Homeland Security
ALSO MENTIONED  Kevin Stitt, Oklahoma governor who appointed Armstrong

Part of a bigger story

4 OUTLETS
Alan Armstrong Sworn In to Fill Markwayne Mullin’s Senate Term

Gov. Kevin Stitt appointed Alan Armstrong to fill Markwayne Mullin’s vacant Oklahoma Senate seat, and Armstrong was sworn in. Center outlets describe the appointment and swearing-in in largely factual terms, with some also emphasizing Armstrong’s stated permitting and energy priorities.

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