---
type: Candidate
title: "David Costello"
description: "U.S. Senate candidate, ME (2026)"
office: "U.S. Senate"
state: "ME"
party: "DEM"
stance: "challenger"
election_year: 2026
status: "statutory candidate"
committee:
  name: "COSTELLO FOR U.S. SENATE"
  id: "C00907881"
ids:
  fec: "S4ME00113"
sources:
  - field: filing
    source: FEC (Federal Election Commission)
confidence: official
tags: [candidate, federal, senate, me]
timestamp: "2026-07-03"
---

# David Costello

Democratic challenger for U.S. Senate (ME), 2026.

## Campaign Committee

- COSTELLO FOR U.S. SENATE (C00907881)

## Source

- filing: FEC (Federal Election Commission)

Federal candidate filing; not yet linked to an officeholder record.