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Who is my U.S. representative in CA-21?

Captured 2026-07-10 20:20:40 UTC Model gpt-5-2025-08-07 
Jim Costa (Democrat) is the U.S. Representative for California’s 21st Congressional District.

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Judge accurate

Judge model claude-opus-4-8

The response correctly identifies Jim Costa as the U.S. Representative for CA-21, matching the ground truth.

Human not reviewed
Final accurate

Ground truth

representative: Jim Costa

clerk.house.gov 100 as of 2026-07-07

https://clerk.house.gov/xml/lists/MemberData.xml

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The human verdict is authoritative — it becomes the final verdict.