legislation_cosponsors: 108-s-2609, J000072

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-s-2609	J000072	Sen. Jeffords, James M. [I-VT]	I	VT	2004-09-20	0