legislation_cosponsors: 112-hr-991, D000533

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-991	D000533	Rep. Duncan, John J., Jr. [R-TN-2]	R	TN	2011-05-13	0