legislation_cosponsors: 106-sres-96, W000288

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
106-sres-96	W000288	Sen. Wellstone, Paul D. [D-MN]	D	MN	1999-06-15	0