legislation_cosponsors: 99-hconres-325, D000222

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-325	D000222	Rep. Dellums, Ronald V. [D-CA-8]	D	CA	1986-05-06	0