legislation_cosponsors: 109-s-3837, F000439

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-3837	F000439	Sen. Frist, William H. [R-TN]	R	TN	2006-09-06	0