legislation_cosponsors: 115-s-635, H001076

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-635	H001076	Sen. Hassan, Margaret Wood [D-NH]	D	NH	2017-03-21	0