legislation_cosponsors: 112-hconres-78, C001049

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-hconres-78	C001049	Rep. Clay, Wm. Lacy [D-MO-1]	D	MO	2011-09-14	1