legislation_cosponsors: 101-hr-3147, K000306

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-3147	K000306	Rep. Kolbe, Jim [R-AZ-5]	R	AZ	1989-08-04	1