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Who Is Alan Armstrong? New Oklahoma Republican Senator to Be Sworn In

Armstrong was appointed to fill Oklahoma’s Senate vacancy and says permitting reform will be a priority.

Who Is Alan Armstrong? New Oklahoma Republican Senator to Be Sworn In
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Outlet credibilityNewsweek75/100 HIGH
This article1 analysis · Oct 8, 2026

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Mar 24, 2026
tl;dr

Oklahoma Gov. Kevin Stitt appointed energy executive Alan Armstrong to fill Markwayne Mullin’s Senate seat through the end of the year, and Armstrong was sworn in Tuesday. Armstrong says permitting reform will be a priority; Rep. Kevin Hern has entered the race for the full term.

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Alan Armstrong R · OK · SEN
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Alan Armstrong
R · OK · SEN

Oklahoma senator appointed to serve the remainder of Markwayne Mullin’s term

PRIMARY SUBJECT
Kevin Hern
R · OK-1

Oklahoma representative and candidate for the Senate seat’s full term

Donald Trump
R · President of the United States

President who discussed the appointment with Stitt and endorsed Hern

Markwayne Mullin
Secretary of Homeland Security

Former Oklahoma senator whose seat Armstrong was appointed to fill; confirmed as secretary of Homeland Security

ALSO MENTIONED  Kevin Stitt, Oklahoma governor who appointed Armstrong to the Senate seat

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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