legislation_cosponsors: 113-s-1670, R000584

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
113-s-1670	R000584	Sen. Risch, James E. [R-ID]	R	ID	2013-11-07	1