legislation_cosponsors: 104-sres-243, A000355

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
104-sres-243	A000355	Sen. Abraham, Spencer [R-MI]	R	MI	1996-05-02	0