legislation_cosponsors: 105-s-1957, C000269

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
105-s-1957	C000269	Sen. Chafee, John H. [R-RI]	R	RI	1998-04-03	1