legislation_cosponsors: 116-sres-339, Y000064

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
116-sres-339	Y000064	Sen. Young, Todd [R-IN]	R	IN	2019-09-25	1