legislation_cosponsors: 99-hr-3530, M000512

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-3530	M000512	Rep. McKernan, John R., Jr. [R-ME-1]	R	ME	1985-10-22	0