legislation_cosponsors: 113-hr-4148, D000191

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
113-hr-4148	D000191	Rep. DeFazio, Peter A. [D-OR-4]	D	OR	2014-04-28	0