legislation_cosponsors: 103-s-4, M000236

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
103-s-4	M000236	Sen. Mathews, Harlan [D-TN]	D	TN	1993-09-10	0