legislation_cosponsors: 109-s-1892, D000432

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
109-s-1892	D000432	Sen. Dorgan, Byron L. [D-ND]	D	ND	2005-10-19	1