legislation_cosponsors: 119-hr-6945, S000522

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-6945	S000522	Rep. Smith, Christopher H. [R-NJ-4]	R	NJ	2026-01-06	1