legislation_cosponsors: 119-hr-286, V000138

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-286	V000138	Rep. Vindman, Eugene [D-VA-7]	D	VA	2025-03-31	0