legislation_cosponsors: 115-hr-5302, T000469

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-hr-5302	T000469	Rep. Tonko, Paul [D-NY-20]	D	NY	2018-03-15	1