legislation_cosponsors: 115-hres-602, H001053

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-602	H001053	Rep. Hartzler, Vicky [R-MO-4]	R	MO	2017-11-01	1