legislation_cosponsors: 101-hr-4604, C000794

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-4604	C000794	Rep. Costello, Jerry F. [D-IL-21]	D	IL	1990-06-26	0