legislation_cosponsors: 101-sres-157, D000566

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
101-sres-157	D000566	Sen. Durenberger, Dave [R-MN]	R	MN	1989-07-25	1