legislation_cosponsors: 99-sres-299, G000267

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
99-sres-299	G000267	Sen. Goldwater, Barry [R-AZ]	R	AZ	1986-01-28	1