legislation_cosponsors: 99-hr-4567, L000237

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
99-hr-4567	L000237	Rep. Leland, Mickey [D-TX-18]	D	TX	1986-04-10	1