legislation_cosponsors: 118-sres-263, F000479

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
118-sres-263	F000479	Sen. Fetterman, John [D-PA]	D	PA	2023-06-21	1