Massachusetts Senate

Outside groups have reported $2,240,377 in independent spending in this race, all of it in the primaries. The biggest spender so far is Commonwealth Together PAC, at $2.2M.

  • General election
    $0
  • Primaries
    $2.2M
  • Late reports
    $561K
  • Last 14 days
    $0

On the November ballot · campaign money and outside spending around each

  • Outside spending for
  • Outside spending against

Ed Markey (D)

Incumbent

Raised
$8.1M
Spent
$8.4M
Cash on hand
$1.3M

Campaign reports through Aug. 12, 2026.

Outside spending, general election

None reported yet.

Primary and other: $18K for, $0 against.

John Deaton (R)

Raised
$1.6M
Spent
$849K
Cash on hand
$712K

Campaign reports through Aug. 12, 2026.

Outside spending, general election

None reported yet.

Joe Tache

Raised
$270K
Spent
$177K
Cash on hand
$93K

Campaign reports through Sept. 30, 2026.

Outside spending, general election

None reported yet.

November ballot as listed by this source on Oct. 1, 2026. Party letters: D Democrat, R Republican, I independent, L Libertarian, G Green.

Not on the November ballot · lost a primary, withdrew or didn’t run, with the money spent around them

Seth Moulton (D)

Raised
$6.2M
Spent
$6.2M
Cash on hand
$1.8M

Campaign reports through Aug. 12, 2026.

Outside spending, all elections

  • Against$2.2M

Others who filed with the FEC: Shiva Ayyadurai (I), raised $285,486; Nathan Alexander Bech (R), raised $80,010; Alexander Rikleen (D), raised $79,333; Morgan Gifford Dawicki (I), raised $16,498.

Every outside spender · 4 groups, general-election money first

Every group that reported independent spending in this race
SpenderSpent onGeneralPrimaryTotalLatest
Commonwealth Together PACSuper PAC · $561K in late reportsAGAINST Seth Moulton (D)–$2.2M$2.2MAug. 24, 2026
National Association of Realtors Political Action CommitteePACHousingFOR Ed Markey (D)–$18K$18KAug. 12, 2026
Givegreen United ActionSuper PACFOR Ed Markey (D)–$80$80Dec. 17, 2025
Sierra Club Independent ActionSuper PACEnergy & climateFOR Ed Markey (D)–$10$10Feb. 11, 2026

Latest filings · newest 18

Newest outside-spending filings in this race
DateSpenderFor or againstElectionAmount
Aug. 24, 2026LateCommonwealth Together PACAdvertisement - tvAGAINST Seth Moulton (D)Primary$300,000 (FEC filing)
Aug. 18, 2026LateCommonwealth Together PACAd productionAGAINST Seth Moulton (D)Primary$11,490 (FEC filing)
Aug. 17, 2026LateCommonwealth Together PACAdvertisement - tvAGAINST Seth Moulton (D)Primary$250,000 (FEC filing)
Aug. 12, 2026National Association of Realtors Political Action CommitteeDigital ad buys, meta, gifs & videoFOR Ed Markey (D)Primary$9,517 (FEC filing)
Aug. 12, 2026National Association of Realtors Political Action CommitteeDigital ad buys, meta & gifsFOR Ed Markey (D)Primary$7,200 (FEC filing)
Aug. 12, 2026National Association of Realtors Political Action CommitteeAdministrative consultingFOR Ed Markey (D)Primary$1,200 (FEC filing)
Aug. 3, 2026Commonwealth Together PACAdvertisement - tvAGAINST Seth Moulton (D)Primary$62,201 (FEC filing)
July 31, 2026Commonwealth Together PACDigital advertisingAGAINST Seth Moulton (D)Primary$150,000 (FEC filing)
July 29, 2026Commonwealth Together PACAdvertisement - tvAGAINST Seth Moulton (D)Primary$100,000 (FEC filing)
July 27, 2026Commonwealth Together PACAdvertisement - tvAGAINST Seth Moulton (D)Primary$100,000 (FEC filing)
July 20, 2026Commonwealth Together PACAdvertisement - tvAGAINST Seth Moulton (D)Primary$100,000 (FEC filing)
July 7, 2026Commonwealth Together PACNewspaper advertisementAGAINST Seth Moulton (D)Primary$10,000 (FEC filing)
July 7, 2026Commonwealth Together PACAd productionAGAINST Seth Moulton (D)Primary$8,680 (FEC filing)
July 3, 2026Commonwealth Together PACAdvertisement - tvAGAINST Seth Moulton (D)Primary$500,000 (FEC filing)
May 6, 2026Commonwealth Together PACDigital advertisingAGAINST Seth Moulton (D)Primary$280,000 (FEC filing)
April 1, 2026Commonwealth Together PACDigital advertisingAGAINST Seth Moulton (D)Primary$350,000 (FEC filing)
Feb. 11, 2026Sierra Club Independent ActionWebsite endorsementFOR Ed Markey (D)Primary$10 (FEC filing)
Dec. 17, 2025Givegreen United ActionEmail messagingFOR Ed Markey (D)Primary$80 (FEC filing)

About these numbers

  • Outside spending is money groups spent on their own ads, mail and canvassing for or against a candidate. Groups can’t coordinate it with campaigns, and it isn’t counted in what campaigns raised or spent.
  • Every group that reported independent spending to the FEC is listed, not only the groups on our issue pages. Groups tracked on an issue page carry a tag linking to it.
  • Primary, special or general comes from the election the group listed on each expenditure. Seats with a special election this cycle show that money separately.
  • Late reports are 24- and 48-hour filings made since a group’s last regular report. Earlier ones are already counted on that report, so we don’t count them twice.
  • Some nonprofits don’t have to name their donors, so this shows who spent the money, not always who gave it.

FEC data as of Oct. 5, 2026. Campaign figures cover the full 2026 cycle. Current senators: Sen. Ed Markey, Sen. Elizabeth Warren. How this works.