legislation_cosponsors: 113-hr-1998, L000397

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-1998	L000397	Rep. Lofgren, Zoe [D-CA-19]	D	CA	2013-10-11	0