legislation_cosponsors: 119-hr-2581, H001086

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-hr-2581	H001086	Rep. Harshbarger, Diana [R-TN-1]	R	TN	2025-06-17	0