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Who is my U.S. representative in IL-01?

Captured 2026-07-15 03:01:10 UTC Model ChatGPT Source page 
Your current U.S. representative for Illinois's 1st Congressional District (IL-01) is:

Jonathan Jackson

He is a Democrat and has represented IL-01 since January 2023, after winning the 2022 election to succeed longtime Representative Bobby Rush. The district includes much of Chicago's South Side along with portions of suburban and exurban Cook, Will, and Kankakee counties. 
en.wikipedia.org
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Judge model claude-opus-4-8

The response correctly identifies Jonathan Jackson as the U.S. representative for IL-01, matching the ground truth, along with accurate supporting details about his party and predecessor.

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Final accurate

Ground truth

representative: Jonathan Jackson

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

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

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