legislation_cosponsors: 99-hconres-229, Z000014

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
99-hconres-229	Z000014	Rep. Zschau, Edwin V. W. [R-CA-12]	R	CA	1985-11-20	1