legislation_cosponsors: 117-s-888, P000145

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
117-s-888	P000145	Sen. Padilla, Alex [D-CA]	D	CA	2021-03-22	1