legislation_cosponsors: 115-hres-211, S001193

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-hres-211	S001193	Rep. Swalwell, Eric [D-CA-15]	D	CA	2017-03-20	1