legislation_cosponsors: 116-sconres-39, M001183

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
116-sconres-39	M001183	Sen. Manchin, Joe, III [D-WV]	D	WV	2020-06-04	1