legislation_cosponsors: 113-hres-730, S001175

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-hres-730	S001175	Rep. Speier, Jackie [D-CA-14]	D	CA	2014-09-17	1