legislation_cosponsors: 109-sconres-30, C001041

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
109-sconres-30	C001041	Sen. Clinton, Hillary Rodham [D-NY]	D	NY	2005-04-28	1