legislation_cosponsors: 105-sres-264, B001126

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
105-sres-264	B001126	Sen. Burns, Conrad R. [R-MT]	R	MT	1998-07-31	1