legislation_cosponsors: 119-hr-1588, D000624

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-1588	D000624	Rep. Dingell, Debbie [D-MI-6]	D	MI	2025-02-26	1