legislation_cosponsors: 109-hres-856, D000210

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
109-hres-856	D000210	Rep. Delahunt, William D. [D-MA-10]	D	MA	2006-06-08	1