legislation_cosponsors: 112-hr-374, H001059

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
112-hr-374	H001059	Rep. Hultgren, Randy [R-IL-14]	R	IL	2011-06-15	0