legislation_cosponsors: 101-hconres-375, L000264

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
101-hconres-375	L000264	Rep. Levine, Mel [D-CA-27]	D	CA	1990-09-26	1