legislation_cosponsors: 101-sres-271, G000365

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-271	G000365	Sen. Gramm, Phil [R-TX]	R	TX	1990-04-18	1