legislation_cosponsors: 115-hr-3138, T000474

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-3138	T000474	Rep. Torres, Norma J. [D-CA-35]	D	CA	2017-06-29	1