legislation_cosponsors: 115-hr-3, C001053

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-3	C001053	Rep. Cole, Tom [R-OK-4]	R	OK	2018-05-09	1