--- type: Candidate title: "Katherine Clark" description: "U.S. House candidate, MA-05 (2026)" office: "U.S. House" state: "MA" district: "MA-05" party: "DEM" stance: "incumbent" election_year: 2026 status: "statutory candidate" committee: name: "KATHERINE CLARK FOR CONGRESS" id: "C00541888" ids: fec: "H4MA05084" sources: - field: filing source: FEC (Federal Election Commission) confidence: official tags: [candidate, federal, house, ma] timestamp: "2026-07-03" --- # Katherine Clark Democratic incumbent for U.S. House (MA-05), 2026. ## Campaign Committee - KATHERINE CLARK FOR CONGRESS (C00541888) ## Source - filing: FEC (Federal Election Commission) Federal candidate filing; not yet linked to an officeholder record.