legislation_cosponsors: 117-s-475, C001113

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
117-s-475	C001113	Sen. Cortez Masto, Catherine [D-NV]	D	NV	2021-02-25	1