Verified current memberAppointed caretaker senator

Alan Armstrong

Republican · U.S. Senate · OK

Alan Armstrong is serving as Oklahoma’s appointed caretaker U.S. senator. He was appointed on March 24, 2026, to fill the vacancy created when Markwayne Mullin resigned from the Senate, and his temporary service runs through January 2027. Armstrong was appointed—not elected—to the current term.

Congressional data updated Aug 24, 2026

Official portrait of Alan Armstrong — Public-source portrait

At a Glance

Highlights from available records. Missing information does not mean an activity did not occur.

Current committee assignments

Distinct linked committees and subcommittees in the available membership records.

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Temporary appointed service

Armstrong is serving as a caretaker senator through January 2027

This is an appointed, temporary Senate term—not a term Armstrong won in an election. Oklahoma’s governor selected him to fill the vacancy left by Markwayne Mullin’s resignation.

U.S. Senate appointment record ↗Armstrong Senate office service dates ↗

Money tracked by Paper Trail

Organization-Affiliated PAC Contributions

Net tracked contributions

$0No tracked cycle

Gross tracked contributions

$0Before refunds and offsets

Refunds / offsets

Largest tracked PAC

None recorded

Net tracked contributions equal positive contribution records minus negative refunds or offsets. These totals include only organization-affiliated PACs currently represented in Paper Trail and are not the politician’s total fundraising.

No contributions from Paper Trail-tracked organization PACs are currently linked to this politician.

Institutional position