legislation_cosponsors: 113-sres-282, W000817

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
113-sres-282	W000817	Sen. Warren, Elizabeth [D-MA]	D	MA	2013-10-31	1