legislation_cosponsors: 111-hres-385, M001140

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
111-hres-385	M001140	Rep. Moore, Dennis [D-KS-3]	D	KS	2009-04-30	1