legislation_cosponsors: 111-hr-5249, C001077

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-hr-5249	C001077	Rep. Coffman, Mike [R-CO-6]	R	CO	2010-05-06	1