Response review
Grok · paid, api, api · api
Who is my U.S. representative in TX-20?
Captured 2026-07-10 22:05:02 UTC
Model grok-4.3
**Joaquin Castro (D)** represents Texas's 20th congressional district (TX-20). TX-20 covers central and western portions of San Antonio and surrounding Bexar County areas. Castro has held the seat since 2013. For the most current confirmation (especially after elections or redistricting), check the official House website (house.gov) or enter your address on a tool like the Texas Legislative Council or GovTrack. You can also contact his office directly via castro.house.gov.
Grade
Judge
accurate
Judge model claude-opus-4-8
The response correctly identifies Joaquin Castro as the U.S. representative for TX-20, matching the ground truth, and provides accurate contextual details.
Human
not reviewed
Final
accurate
Ground truth
representative: Joaquin Castro
clerk.house.gov 100
as of 2026-07-07