legislation_cosponsors: 101-hr-4098, A000337

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-4098	A000337	Rep. AuCoin, Les [D-OR-1]	D	OR	1990-02-22	1