legislation_cosponsors: 98-hr-5893, 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
98-hr-5893	K000020	Rep. Kastenmeier, Robert W. [D-WI-2]	D	WI	1984-06-19	1