legislation_cosponsors: 112-hr-4086, S000583

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
112-hr-4086	S000583	Rep. Smith, Lamar [R-TX-21]	R	TX	2012-02-24	1