legislation_cosponsors: 119-hr-1778, K000399

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-1778	K000399	Rep. Kiggans, Jennifer A. [R-VA-2]	R	VA	2026-03-03	0