legislation_cosponsors: 110-hr-6473, M000472

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-6473	M000472	Rep. McHugh, John M. [R-NY-23]	R	NY	2008-07-10	1