legislation_cosponsors: 111-sres-659, E000194

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
111-sres-659	E000194	Sen. Ensign, John [R-NV]	R	NV	2010-09-28	1