legislation_cosponsors: 119-sres-201, S001198

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-sres-201	S001198	Sen. Sullivan, Dan [R-AK]	R	AK	2025-05-05	1