legislation_cosponsors: 110-hr-4185, R000004

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-4185	R000004	Rep. Radanovich, George [R-CA-19]	R	CA	2007-12-06	0