legislation_cosponsors: 109-s-1506, S000148

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-s-1506	S000148	Sen. Schumer, Charles E. [D-NY]	D	NY	2005-07-27	1