legislation_cosponsors: 99-hconres-207, A000189

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
99-hconres-207	A000189	Rep. Anderson, Glenn M. [D-CA-32]	D	CA	1985-10-07	1