legislation_cosponsors: 112-hconres-130, S000248

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-hconres-130	S000248	Rep. Serrano, Jose E. [D-NY-16]	D	NY	2012-06-29	1