legislation_cosponsors: 112-hr-3572, N000002

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-hr-3572	N000002	Rep. Nadler, Jerrold [D-NY-8]	D	NY	2011-12-15	0