legislation_cosponsors: 105-sconres-50, M000303

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
105-sconres-50	M000303	Sen. McCain, John [R-AZ]	R	AZ	1998-04-02	0