legislation_cosponsors: 112-hr-1085, L000480

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-1085	L000480	Rep. Lowey, Nita M. [D-NY-18]	D	NY	2011-03-15	1