legislation_cosponsors: 119-hres-855, G000604

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-hres-855	G000604	Rep. Goodlander, Maggie [D-NH-2]	D	NH	2025-11-04	1