Response review
ChatGPT · paid, api, api · api
Who is my U.S. representative in CA-20?
Captured 2026-07-10 20:20:32 UTC
Model gpt-5-2025-08-07
Vince Fong (Republican) is the U.S. Representative for California’s 20th congressional district. He was sworn in on June 3, 2024. ([clerk.house.gov](https://clerk.house.gov/Members/F000480?_hsmi=410610276&utm_source=openai)) Want his contact info or local office details?
Cited sources
Grade
Judge
accurate
Judge model claude-opus-4-8
The response correctly identifies Vince Fong as the U.S. Representative for CA-20, matching the ground truth, and cites the authoritative clerk.house.gov source.
Human
not reviewed
Final
accurate
Ground truth
representative: Vince Fong
clerk.house.gov 100
as of 2026-07-07