legislation_cosponsors: 106-hr-40, W000187

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-hr-40	W000187	Rep. Waters, Maxine [D-CA-35]	D	CA	1999-03-15	0