legislation_cosponsors: 108-hr-4263, L000342

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-4263	L000342	Rep. Lipinski, William O. [D-IL-3]	D	IL	2004-05-13	0