legislation_cosponsors: 101-hr-2273, S000407

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-2273	S000407	Rep. Sikorski, Gerry E. [D-MN-6]	D	MN	1989-06-14	0