legislation_cosponsors: 113-s-1670, C001071

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	C001071	Sen. Corker, Bob [R-TN]	R	TN	2013-11-14	0