legislation_cosponsors: 99-hconres-54, B000318

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-54	B000318	Rep. Beilenson, Anthony C. [D-CA-23]	D	CA	1985-03-05	0