legislation_cosponsors: 110-s-2722, B001135

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
110-s-2722	B001135	Sen. Burr, Richard [R-NC]	R	NC	2008-04-01	0