legislation_cosponsors: 108-hr-5151, B001231

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
108-hr-5151	B001231	Rep. Berkley, Shelley [D-NV-1]	D	NV	2004-09-28	1