Response review
Claude · free, login_required, browser · local_node
Who are my U.S. senators in Oklahoma?
Oklahoma's current U.S. senators are: James Lankford (R) — serving since 2015 Alan Armstrong (R) — appointed in March 2026 to replace Markwayne Mullin, who resigned to become secretary of homeland security Wikipedia A quick note: Armstrong's tenure is temporary — he's barred from seeking a full term, and Kevin Hern is the Republican nominee in the November 2026 election for that seat, with the Democratic nominee to be decided in an August runoff. So Oklahoma will likely have a new second senator after the November election. Wikipedia
Cited sources
Grade
Judge
accurate
Judge model claude-opus-4-8
The response correctly identifies both senators, Alan Armstrong and James Lankford, matching the ground truth. Additional context about Armstrong's appointment and upcoming election is supplementary.
Human
not reviewed
Final
accurate
Ground truth
senators: Alan Armstrong, James Lankford
senate.gov 100
as of 2026-07-14
https://www.senate.gov/general/contact_information/senators_cfm.xml