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● InformationalCongress / Members

Oklahoma gov. taps energy exec Alan Armstrong to replace Markwayne Mullins in Senate

Armstrong was appointed to serve in the Senate until an election for the seat can be held.

Oklahoma gov. taps energy exec Alan Armstrong to replace Markwayne Mullins in Senate
Image · United Press International

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Outlet credibilityUnited Press International88/100 HIGH
This article1 analysis · Oct 8, 2026
tl;dr

Oklahoma Gov. Kevin Stitt appointed energy executive Alan Armstrong to temporarily fill Markwayne Mullin’s Senate seat after Mullin became secretary of Homeland Security. Armstrong is expected to serve until an election for the seat in November.

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

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Alan Armstrong
R · OK · SEN

Appointed to temporarily fill Oklahoma’s vacant Senate seat

PRIMARY SUBJECT

Attorney general who swore in Mullin as Homeland Security secretary

Kevin Hern
R · OK-1

Oklahoma representative endorsed by Trump for the Senate seat

Donald Trump
R · President of the United States

President who endorsed Kevin Hern for the Senate seat

Martin Heinrich
D · NM · SEN

New Mexico senator who voted to confirm Mullin

John Fetterman
D · PA · SEN

Pennsylvania senator who voted to confirm Mullin

Markwayne Mullin
Secretary of Homeland Security

Former Oklahoma senator who became secretary of Homeland Security

ALSO MENTIONED  Kevin Stitt, Oklahoma governor who appointed Armstrong

Part of a bigger story

14 OUTLETS
Oklahoma Governor Appoints Alan Armstrong to Fill U.S. Senate Seat

Oklahoma Gov. Kevin Stitt appointed energy executive Alan Armstrong to replace Markwayne Mullin in the Senate. Armstrong is to serve temporarily while the seat’s next elected senator is determined. Center outlets largely focus on the appointment and interim succession, with some also discussing Armstrong’s political ties, priorities, or reactions to the pick. Right-leaning outlets likewise emphasize the temporary appointment; one report adds Armstrong’s donation to Adam Kinzinger and his limited public profile.

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