legislation_cosponsors: 100-hconres-276, M000687

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
100-hconres-276	M000687	Rep. Mfume, Kweisi [D-MD-7]	D	MD	1988-09-23	0