legislation_cosponsors: 97-hr-6542, K000020

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
97-hr-6542	K000020	Rep. Kastenmeier, Robert W. [D-WI-2]	D	WI	1982-06-17	0