legislation_cosponsors: 119-hr-7531, D000617

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-7531	D000617	Rep. DelBene, Suzan K. [D-WA-1]	D	WA	2026-02-12	1