legislation_cosponsors: 110-s-2891, 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
110-s-2891	C001041	Sen. Clinton, Hillary Rodham [D-NY]	D	NY	2008-04-17	1