legislation_cosponsors: 99-hr-5019, H000388

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-5019	H000388	Rep. Hayes, Charles A. [D-IL-1]	D	IL	1986-06-12	1