legislation_cosponsors: 111-s-3942, B000243

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-s-3942	B000243	Sen. Baucus, Max [D-MT]	D	MT	2010-11-15	1