legislation_cosponsors: 98-sconres-135, B001225

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
98-sconres-135	B001225	Sen. Bradley, Bill [D-NJ]	D	NJ	1984-08-09	1