legislation_cosponsors: 111-hres-331, C001050

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-331	C001050	Rep. Cardoza, Dennis A. [D-CA-18]	D	CA	2009-05-05	0