legislation_cosponsors: 119-hr-1958, F000475

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-1958	F000475	Rep. Finstad, Brad [R-MN-1]	R	MN	2025-03-06	1