legislation_cosponsors: 119-s-3159, M001190

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
119-s-3159	M001190	Sen. Mullin, Markwayne [R-OK]	R	OK	2025-11-07	1