legislation_cosponsors: 98-hr-4567, L000486

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-4567	L000486	Rep. Lowry, Mike [D-WA-7]	D	WA	1983-11-18	1