legislation_cosponsors: 110-hr-4161, M001168

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
110-hr-4161	M001168	Rep. Murphy, Patrick J. [D-PA-8]	D	PA	2007-11-13	1