legislation_cosponsors: 110-hr-4987, R000409

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
110-hr-4987	R000409	Rep. Rohrabacher, Dana [R-CA-46]	R	CA	2008-01-22	0