legislation_cosponsors: 99-sconres-135, Q000007

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-135	Q000007	Sen. Quayle, Dan [R-IN]	R	IN	1986-04-30	1