legislation_cosponsors: 113-hr-5331, H001063

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-5331	H001063	Rep. Hahn, Janice [D-CA-44]	D	CA	2014-07-31	1