legislation_cosponsors: 99-s-1621, E000017

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-s-1621	E000017	Sen. East, John P. [R-NC]	R	NC	1985-09-11	1