legislation_cosponsors: 101-hr-4098, D000586

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
101-hr-4098	D000586	Rep. Dwyer, Bernard J. [D-NJ-6]	D	NJ	1990-02-22	1