legislation_cosponsors: 115-s-3719, T000476

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-3719	T000476	Sen. Tillis, Thomas [R-NC]	R	NC	2018-12-06	1