legislation_cosponsors: 99-sjres-342, S000423

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-sjres-342	S000423	Sen. Simon, Paul [D-IL]	D	IL	1986-05-12	1