Incumbent
Jennifer S. DeSena
Current through Oct 19RepublicanREP, CONIncumbent supervisor since 2022; attorney and former SEC enforcement attorney.
Full sourced profileNassau County · 2026 general election
Supervisor District Townwide
2 candidates are listed in the official county election roster. The incumbent, when present, appears first.
Cycle tags: 2026 cycle, Nov 5, 2025 – Oct 19, 2026 = state & local filings (NYSBOE) · federal 2025–26 = FEC, Jan 1, 2025 – latest. Each money figure belongs to the cycle on its tag.
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County Clerk
East Hampton Highway Superintendent
East Hampton Supervisor
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Shelter Island Supervisor
Smithtown Receiver of Taxes
Southampton Town Trustee
Nassau Family Court JudgeNassau District Court Judge (District 2)Nassau District Court Judge (District 3)Nassau District Court Judge (District 4)Suffolk Shelter Island Town JusticeSuffolk County Court JudgeSuffolk District Court Judge (3rd District)Suffolk District Court Judge (5th District)Suffolk District Court Judge (6th District)Suffolk Family Court JudgeSuffolk Justice of the Supreme Court (10th Judicial District)All →
Top spenderDaniel P. Losquadro · $1,229,727 spentBiggest war chestJohn R. Ferretti · $882,748 raisedParty favoritesGOP lead 28 · Dems lead 27 of 55 racesCandidate-to-candidate transfers$337,575 in 367 transfersCampaigns Funding Campaigns$1,322,541 between committeesParty Pipeline$34,674,579 to party committeesMoney homeevery candidate, raised & spent
2026 cycle, Nov 5, 2025 – Oct 19, 2026 (state & local); Congress transfers: federal 2025–26.
💰 Money in Politics2026 cycle, Nov 5, 2025 – Oct 19, 2026
$8,760,473in contributions to 131 state & local candidates
Spending by industry (consultants)
- Strategy / consulting$543,661
- Media / ads$247,400
- Polling / research$101,700
- Legal / compliance$22,294
💰 Follow the money
Jennifer S. DeSenaRepublican · Incumbent
$287,679raised
Spent $214,392Cash on hand not reported
2026 cycle, Nov 5, 2025 – Oct 19, 2026
Sean Michael McCarthyDemocratic
$354,566raised
Spent $338,315Cash on hand not reported
2026 cycle, Nov 5, 2025 – Oct 19, 2026Jennifer S. DeSena · Before this cycle: $341,955 raised, $282,830 spent (Dec 4, 2024 – Nov 3, 2025, last cycle: Nov 6, 2024 – Nov 4, 2025), not counted in 2026 totals.
Raised vs. spent 2026 cycle, Nov 5, 2025 – Oct 19, 2026
Jennifer S. DeSenaRaised$287,679
Spent$214,392
Sean Michael McCarthyRaised$354,566
Spent$338,315
Where the money came from 2026 cycle, Nov 5, 2025 – Oct 19, 2026
Jennifer S. DeSena $287,679 total receiptsIndividuals 75% · Companies / LLCs 15% · PACs & committees 8%
Sean Michael McCarthy $354,566 total receiptsIndividuals 70% · PACs & committees 19% · Companies / LLCs 6%
IndividualsCompanies / LLCsPACs & committeesTransfers from other committeesOther receipts
Biggest checks in, biggest checks out 2026 cycle, Nov 5, 2025 – Oct 19, 2026
Jennifer S. DeSenaTop contributors
Laura Marooney$10,000
Kevin Lalezarian$7,500
Harry Singh$7,500
Nassau County Pba Pac$6,776
Jordan Sanders$5,000
Top expenditures
Nassau County Gop$140,150
Nassau County Republican Committee$14,305
Hendrick's Tavern$12,030
CCC Enterprises$10,395
Roslyn O-S Hotel Partners$5,798
Sean Michael McCarthyTop contributors
COMMON GOOD PAC$33,396
Stand Up PAC$25,000
Leshgold Family Trust$16,000
Jerry Straus$10,000
Jay Jacobs$8,396
Top expenditures
Renaissance Campaign Strategies$95,000
NYS Democratic Committee NYS Campaign Ac$45,000
FH Strategies LLC$44,000
North Hempstead Democratic Committee$30,000
Honan Strategy Group$27,000
Party money in & out 2026 cycle, Nov 5, 2025 – Oct 19, 2026
Jennifer S. DeSena⬇ From party committees $950top: Willistons Republican Committee $500⬆ To party committees $156,155top: Nassau County Republican Committee $154,455
Sean Michael McCarthy⬇ From party committees $0⬆ To party committees $75,000top: NYS Democratic Committee $45,000
Candidates with no party-committee transactions in this cycle are not listed. See the Party Pipeline.
Sources: NYSBOE filings, 2026 cycle only (Nov 5, 2025 – Oct 19, 2026). Bars are scaled to the largest amount in each panel. "Not reported" means the value was not found in the data, not that it is zero.
Side by side: Supervisor District Townwide
| Photo |  |  |
|---|---|---|
| Name | Jennifer S. DeSena | Sean Michael McCarthy |
| Party / lines | Republican · REP, CON | Democratic · DEM |
| Incumbent | Incumbent | No |
| Office / district | Incumbent Supervisor · District Townwide | Candidate for Supervisor · District Townwide |
| Money raised 2026 cycle, Nov 5, 2025 – Oct 19, 2026 | $287,679 | $354,566 |
| Spent 2026 cycle, Nov 5, 2025 – Oct 19, 2026 | $214,392 See itemized expenditures ↓ | $338,315 See itemized expenditures ↓ |
| Top expenditures 2026 cycle, Nov 5, 2025 – Oct 19, 2026 |
|
|
| Cash on hand 2026 cycle, Nov 5, 2025 – Oct 19, 2026 | not reported | not reported |
| Public matching funds 2026 cycle, Nov 5, 2025 – Oct 19, 2026 | not reported | not reported |
| Top contributors 2026 cycle, Nov 5, 2025 – Oct 19, 2026 |
|
|
| How current | Current through Oct 19 | Current through Oct 19 |
| Next filing deadline | 27-Day Post-General — due Nov 30, 2026 | 27-Day Post-General — due Nov 30, 2026 |
| Full detail | Full sourced profile → | Full sourced profile → |
Money figures and contributors come from each candidate's own profile (NYSBOE or FEC filings). State and local figures cover the 2026 cycle only: Nov 5, 2025 (day after the 2025 general election) through Oct 19, 2026 (NYSBOE). "Not reported" means the value was not found in the data, not that it is zero.
Candidate
Sean Michael McCarthy
Current through Oct 19DemocraticDEMPort Washington Police District commissioner; retired 33-year Nassau County police veteran.
Full sourced profileHow this race was verified
Candidate names, offices and ballot lines come from the official Nassau County election roster. Candidate profiles link to underlying official, campaign and finance records. Read the full methodology.
Expenditures: Jennifer S. DeSena
Total itemized spending and outflows: $214,391.862026 cycle, Nov 5, 2025 – Oct 19, 2026 in 89 payments, newest first. Breakdown: transfers out $156,155.00; expenditures $58,236.86.
NYSBOE itemized expenditures, transfers out and refunds for Jennifer Susan DeSena, DeSena for North Hempstead, November 5, 2025 through 2026-10-19 (2026 cycle). Totals may differ slightly from the summary figure above because of rounding or unitemized amounts.
| Date | Payee | Purpose | Amount |
|---|---|---|---|
| 10/19/2026 | Anedot | Anedot fees | $164.10 |
| 10/16/2026 | Exxon | not stated | $40.00 |
| 10/14/2026 | Home Depot | not stated | $202.26 |
| 10/13/2026 | Columbia Police Association of NC | not stated | $265.00 |
| 10/12/2026 | Nassau County Gop | Transfers out | $500.00 |
| 10/12/2026 | Nassau County Conservative Party | Transfers out | $500.00 |
| 10/12/2026 | Home Depot | not stated | $196.87 |
| 10/5/2026 | Nassau County Gop | Transfers out | $35,000.00 |
| 10/2/2026 | United States Postal Service | not stated | $1,312.00 |
| 10/1/2026 | Manhasset Chamber of Commerce | not stated | $100.00 |
| 10/1/2026 | Catholic Lawyers Guild of Nassau County | Red Mass dinner | $150.00 |
| 9/29/2026 | North Hempstead Republican Committee | Transfers out | $200.00 |
| 9/27/2026 | Anedot | Anedot fees | $570.20 |
| 9/19/2026 | Mobil | not stated | $37.73 |
| 9/19/2026 | U-Haul Moving & Storage of Jericho | not stated | $139.36 |
| 9/18/2026 | Jewish Post | not stated | $325.00 |
| 9/18/2026 | James Chin Group LLC | not stated | $750.00 |
| 9/15/2026 | WIX.com Inc. | WIX fees | $2,239.47 |
| 9/15/2026 | Roslyn O-S Hotel Partners | Fundraiser | $5,797.86 |
| 9/14/2026 | Nassau County Gop | Transfers out | $350.00 |
| 9/13/2026 | United States Postal Service | not stated | $390.00 |
| 8/31/2026 | Bravehearts of St. Francis | not stated | $200.00 |
| 8/23/2026 | Nassau County Gop | Transfers out | $2,400.00 |
| 7/23/2026 | Eighth Street Designs | Dragon boat team t-shirts | $500.00 |
| 7/22/2026 | Nassau County Gop | Transfers out | $100,000.00 |
| 7/13/2026 | United States Postal Service | not stated | $1,560.00 |
| 7/7/2026 | Nassau County Gop | Transfers out | $1,000.00 |
| 7/7/2026 | United States Postal Service | not stated | $390.00 |
| 7/7/2026 | Nassau County Gop | Transfers out | $900.00 |
| 7/7/2026 | SOA Charitable Foundation | Silver Sponsor | $500.00 |
| 7/7/2026 | United States Postal Service | not stated | $390.00 |
| 7/2/2026 | Driscoll Victory Fund | not stated | $1,000.00 |
| 7/2/2026 | Dennis Dillon's Cornerman's Foundation | not stated | $1,000.00 |
| 7/1/2026 | Anedot | Anedot fees | $914.70 |
| 6/27/2026 | Ohana Paddling Association | July 25 dragon boat festival | $1,150.00 |
| 6/27/2026 | Cellini Lodge 2206 | not stated | $100.00 |
| 6/16/2026 | Bradford Exchange Checks | New checks | $44.31 |
| 6/15/2026 | New Hyde Park Chamber of Commerce | not stated | $300.00 |
| 6/11/2026 | Nassau County Republican Committee | Transfers out | $620.00 |
| 6/9/2026 | Jewish Post | not stated | $325.00 |
| 6/3/2026 | United States Postal Service | P.O. Box renewal | $242.00 |
| 5/26/2026 | Joe Scalero | tee sign sponsorship reimbursement | $150.00 |
| 5/25/2026 | Dimaggio'S Trattoria | team dinner | $453.55 |
| 5/21/2026 | Long Island Village Clerks & Treasurers | tee sign sponsor | $150.00 |
| 5/20/2026 | Williston Park Florist | funeral wreath | $300.00 |
| 5/20/2026 | Nassau County Republican Committee | Transfers out | $2,000.00 |
| 5/19/2026 | Mike Lipetri for Congress | not stated | $1,000.00 |
| 5/14/2026 | Holocaust Memorial & Tolerance Center | not stated | $300.00 |
| 5/14/2026 | Nassau County Republican Committee | Transfers out | $500.00 |
| 5/14/2026 | Henry Krakowski | not stated | $300.00 |
| 5/11/2026 | Nassau County Conservative Party | Transfers out | $500.00 |
| 5/11/2026 | James Chin | Zelle payment for web services | $1,000.00 |
| 5/8/2026 | Hendrick's Tavern | fundraiser | $11,530.20 |
| 5/5/2026 | WIX.com, Inc. | WIX fees | $3,821.12 |
| 4/29/2026 | New York Empire | not stated | $500.00 |
| 4/29/2026 | Manhasset Bagels | not stated | $62.30 |
| 4/29/2026 | Manhasset Great Neck Eoc | not stated | $150.00 |
| 4/29/2026 | Nassau Lawyers Association | not stated | $200.00 |
| 4/23/2026 | Village of East Williston | not stated | $125.00 |
| 4/22/2026 | Jewish Post | not stated | $325.00 |
| 4/21/2026 | Nassau County Republican Committee | Transfers out | $5,000.00 |
| 4/13/2026 | Hendrick's Tavern | Deposit for fundraiser | $500.00 |
| 4/10/2026 | Fire Marshall Benevolent Association | not stated | $250.00 |
| 4/10/2026 | Nassau County Superior Officers Ass'n | not stated | $250.00 |
| 3/19/2026 | North Hempstead Republican Committee | Transfers out | $200.00 |
| 3/19/2026 | Green'S Irish Pub | team lunch | $231.84 |
| 3/16/2026 | Gabby Petito Foundation | not stated | $500.00 |
| 3/11/2026 | Nassau County Republican Committee | Transfers out | $5,000.00 |
| 3/6/2026 | Google One | not stated | $32.58 |
| 2/17/2026 | Mineola Newline Party | not stated | $100.00 |
| 2/9/2026 | WIX.com, Inc. | WIX fees | $377.99 |
| 2/7/2026 | Tribute and Honor Foundation | not stated | $125.00 |
| 2/3/2026 | Blakeman for New York | not stated | $250.00 |
| 1/27/2026 | WIX.com, Inc. | WIX fees | $21.35 |
| 1/19/2026 | Nassau County Conservative Party | Transfers out | $300.00 |
| 1/19/2026 | Will Ross | not stated | $129.00 |
| 1/11/2026 | Nassau County Republican Committee | Transfers out | $185.00 |
| 1/7/2026 | Mineola Trophy And Awards | ceremonial plaque | $129.00 |
| 1/3/2026 | Verizon | not stated | $264.55 |
| 12/19/2025 | Dominic's Deli | not stated | $660.87 |
| 12/18/2025 | Jewish Post | not stated | $325.00 |
| 12/12/2025 | LICADD | not stated | $125.00 |
| 12/10/2025 | Pseg Long Island | not stated | $158.69 |
| 12/10/2025 | Domain Name Services | Website | $265.00 |
| 12/10/2025 | CCC Enterprises | not stated | $3,674.44 |
| 12/1/2025 | Nassau County Republican Committee | Transfers out | $1,000.00 |
| 11/14/2025 | Pseg Long Island | electricity bill for campaign headquarters | $670.97 |
| 11/13/2025 | Pearl East | not stated | $812.43 |
| 11/8/2025 | CCC Enterprises | not stated | $6,720.12 |
Expenditures: Sean Michael McCarthy
Total itemized spending and outflows: $338,315.432026 cycle, Nov 5, 2025 – Oct 19, 2026 in 72 payments, newest first. Breakdown: expenditures $199,210.43; transfers out $87,500.00; contribution refunds $51,605.00.
NYSBOE itemized expenditures, transfers out and refunds for Sean McCarthy, Friends of Sean McCarthy, November 5, 2025 through 2026-10-19 (2026 cycle). Totals may differ slightly from the summary figure above because of rounding or unitemized amounts.
| Date | Payee | Purpose | Amount |
|---|---|---|---|
| 10/19/2026 | Unitemized | ActBlue and Stripe Fees | $653.89 |
| 10/16/2026 | Renaissance Campaign Strategies | not stated | $62,500.00 |
| 10/16/2026 | Td Bank | not stated | $30.00 |
| 10/7/2026 | North Hempstead Democratic Committee | Transfers out | $30,000.00 |
| 10/7/2026 | Td Bank | not stated | $30.00 |
| 10/1/2026 | NGP VAN | not stated | $477.96 |
| 9/28/2026 | NGP VAN | Fundraising Compliance Software | $119.49 |
| 9/28/2026 | FH Strategies LLC | Fundraising Consultant | $5,500.00 |
| 9/28/2026 | Unitemized | F-Unitemized | $1,089.22 |
| 9/24/2026 | Stripe Inc. | Online contribution processing fees | $110.53 |
| 9/24/2026 | ActBlue Technical Services | Online contribution processing fees | $75.05 |
| 9/23/2026 | Stripe Inc. | Online contribution processing fees | $260.11 |
| 9/23/2026 | ActBlue Technical Services | Online contribution processing fees | $176.25 |
| 9/22/2026 | Renaissance Campaign Strategies | Digital Ads | $32,500.00 |
| 9/21/2026 | COMMON GOOD PAC | Contribution refund — Refund | $25,000.00 |
| 9/21/2026 | Stand Up PAC | Contribution refund | $25,000.00 |
| 9/18/2026 | Patricia Schneider Design Consultants | 4x8 Signs | $1,720.00 |
| 9/11/2026 | NYS Democratic Committee NYS Campaign Ac | Transfers out — Contribution | $45,000.00 |
| 9/11/2026 | Berlin Rosen | Photoshoot | $1,933.01 |
| 9/2/2026 | NGP VAN | Fundraising Compliance Software | $358.47 |
| 9/1/2026 | Honan Strategy Group | Polling | $15,500.00 |
| 8/18/2026 | Patricia Schneider Design Consultants | Lawn Signs | $6,050.00 |
| 8/16/2026 | Sean Mccarthy | Intern Pizza Party Reimbursement | $89.33 |
| 8/11/2026 | Berlin Rosen | Palm Cards | $3,296.00 |
| 8/10/2026 | NCDC | VAN | $4,750.00 |
| 8/7/2026 | Honan Strategy Group | Polling | $11,500.00 |
| 8/5/2026 | NGP VAN | Fundraising Compliance Software | $358.47 |
| 8/3/2026 | FH Strategies LLC | Fundraising Consultants | $5,500.00 |
| 7/31/2026 | FH Strategies LLC | Fundraising Consultants | $5,500.00 |
| 7/27/2026 | Patricia Schneider Design Consultants | Business Cards | $125.00 |
| 7/17/2026 | MS Careers | Bank statement purchase - DD APURAP MS CAREERS | $149.00 |
| 7/17/2026 | North Hempstead Dem Committee | Transfers out — Buy-In | $2,500.00 |
| 7/11/2026 | Unitemized / not reported | F-Unitemized | $2,868.53 |
| 7/10/2026 | Stripe, Inc. | not stated | $92.55 |
| 7/10/2026 | ActBlue Technical Services | not stated | $60.75 |
| 7/10/2026 | Jerry Straus | Contribution refund | $1,605.00 |
| 7/9/2026 | Stripe, Inc. | not stated | $100.44 |
| 7/9/2026 | ActBlue Technical Services | not stated | $64.88 |
| 7/8/2026 | North Hempstead Dem Committee | Transfers out | $2,500.00 |
| 7/3/2026 | NGP VAN | not stated | $358.47 |
| 7/2/2026 | FH Strategies LLC | not stated | $5,500.00 |
| 6/29/2026 | Stripe, Inc. | not stated | $66.46 |
| 6/29/2026 | Manhasset Great Neck EOC | not stated | $167.67 |
| 6/12/2026 | Patricia Schneider Design Consultants | not stated | $975.00 |
| 6/8/2026 | North Hempstead Dem Committee | Transfers out | $2,500.00 |
| 6/6/2026 | Stripe, Inc. | not stated | $51.57 |
| 6/5/2026 | NGP VAN | not stated | $358.47 |
| 6/1/2026 | FH Strategies LLC | not stated | $11,000.00 |
| 5/27/2026 | Stripe, Inc. | not stated | $55.23 |
| 5/27/2026 | North Hempstead Dem Committee | Transfers out | $5,000.00 |
| 5/26/2026 | CBiz Media Corp | not stated | $2,000.00 |
| 5/17/2026 | Stripe, Inc. | not stated | $56.70 |
| 5/12/2026 | Stripe, Inc. | not stated | $58.99 |
| 5/12/2026 | NGP VAN | not stated | $358.47 |
| 5/7/2026 | Stripe, Inc. | not stated | $63.07 |
| 5/5/2026 | Stripe, Inc. | not stated | $207.68 |
| 5/5/2026 | ActBlue Technical Services | not stated | $140.21 |
| 4/28/2026 | Stripe, Inc. | not stated | $186.36 |
| 4/28/2026 | ActBlue Technical Services | not stated | $126.75 |
| 4/28/2026 | Patricia Schneider Design Consultants | not stated | $975.00 |
| 4/22/2026 | NGP VAN | not stated | $358.47 |
| 4/3/2026 | FH Strategies LLC | not stated | $5,500.00 |
| 3/27/2026 | League of Women Voters | not stated | $110.00 |
| 3/6/2026 | FH Strategies LLC | not stated | $5,500.00 |
| 3/2/2026 | Stripe, Inc. | not stated | $77.05 |
| 3/2/2026 | ActBlue Technical Services | not stated | $51.75 |
| 2/27/2026 | Stripe, Inc. | not stated | $94.01 |
| 2/27/2026 | ActBlue Technical Services | not stated | $63.00 |
| 2/26/2026 | Patricia Schneider Design Consultants | not stated | $500.00 |
| 2/25/2026 | Patricia Schneider Design Consultants | not stated | $500.00 |
| 2/16/2026 | Stripe, Inc. | not stated | $126.37 |
| 2/16/2026 | ActBlue Technical Services | not stated | $84.75 |