legislation_cosponsors: 113-hconres-53, P000597

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-hconres-53	P000597	Rep. Pingree, Chellie [D-ME-1]	D	ME	2013-09-12	1