legislation_cosponsors: 99-sconres-97, H000951

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-sconres-97	H000951	Sen. Humphrey, Gordon J. [R-NH]	R	NH	1985-12-17	1