legislation_cosponsors: 105-s-1582, W000154

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-s-1582	W000154	Sen. Warner, John [R-VA]	R	VA	1998-02-09	0