legislation_cosponsors: 115-hr-7281, R000515

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
115-hr-7281	R000515	Rep. Rush, Bobby L. [D-IL-1]	D	IL	2018-12-12	1