legislation_cosponsors: 102-s-420, D000064

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
102-s-420	D000064	Sen. Daschle, Thomas A. [D-SD]	D	SD	1991-06-25	0