legislation_cosponsors: 112-hr-3548, S001155

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-3548	S001155	Rep. Sullivan, John [R-OK-1]	R	OK	2011-12-02	1