legislation_cosponsors: 113-hr-3133, G000560

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
113-hr-3133	G000560	Rep. Graves, Tom [R-GA-14]	R	GA	2013-09-19	1