legislation_cosponsors: 119-hr-5658, G000598

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-5658	G000598	Rep. Garcia, Robert [D-CA-42]	D	CA	2025-09-30	1