legislation_cosponsors: 119-hr-4242, F000471

Cosponsors for tracked legislation. Distinguishes original cosponsors (signed on at introduction) from later additions. Linked to congress_members via bioguide_id.

This data as json

bill_id	bioguide_id	full_name	party	state	sponsorship_date	is_original_cosponsor
119-hr-4242	F000471	Rep. Fitzgerald, Scott [R-WI-5]	R	WI	2025-06-27	1