legislation_cosponsors: 115-hres-972, K000391

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-972	K000391	Rep. Krishnamoorthi, Raja [D-IL-8]	D	IL	2018-06-28	1