legislation_cosponsors: 111-hconres-288, B000490

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-hconres-288	B000490	Rep. Bishop, Sanford D., Jr. [D-GA-2]	D	GA	2010-06-14	1