legislation_cosponsors: 99-sconres-60, C000598

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-60	C000598	Sen. Cohen, William S. [R-ME]	R	ME	1985-07-31	1