legislation_cosponsors: 113-hres-63, B001250

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-63	B001250	Rep. Bishop, Rob [R-UT-1]	R	UT	2013-06-03	0