legislation_cosponsors: 98-hconres-304, W000647

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-hconres-304	W000647	Rep. Wirth, Timothy [D-CO-2]	D	CO	1984-05-10	1