legislation_cosponsors: 119-s-3916, H000601

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-s-3916	H000601	Sen. Hagerty, Bill [R-TN]	R	TN	2026-02-25	1