legislation_cosponsors: 112-s-2155, C001088

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
112-s-2155	C001088	Sen. Coons, Christopher A. [D-DE]	D	DE	2012-03-05	1