legislation_cosponsors: 112-hres-243, M001143

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-hres-243	M001143	Rep. McCollum, Betty [D-MN-4]	D	MN	2011-05-03	1