legislation_cosponsors: 115-s-3321, B000944

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
115-s-3321	B000944	Sen. Brown, Sherrod [D-OH]	D	OH	2018-10-03	0