Federal candidate · 2019–2020 cycle · past cycle

William Lawrence O'Brien

Party
Republican
Running for
U.S. Senate · New Hampshire
Filing address
Pittsfield, NH (city and state on the FEC filing)
FEC filing name
O'BRIEN, WILLIAM LAWRENCE
Next election
Primary September 8, 2020 · General November 3, 2020 (Wikipedia, checked October 23, 2026; confirm with your state election office)
Map of New Hampshire with the whole state highlighted

New Hampshire

RepublicanU.S. Senate · New HampshireChallengerWithdrawn

FEC candidate ID S0NH00318 · Principal campaign committee: BILL O'BRIEN FOR NEW HAMPSHIRE

Total raised$105,956.54
Total spent$105,956.54
Cash on hand$0.00
Debts owed by the campaign$0.00
Loans from the candidate$27,000.00

2019–2020 cycle totals through June 24, 2020, from the FEC’s candidate summary file. This is a dated snapshot, not live reporting; the FEC’s page for this candidate is the official source.

Where the money comes from

Individual contributions: $61,087.15PACs and other committees: $350.00Candidate’s own money (contributions and loans): $44,419.39Other receipts (loans from others, refunds, interest): $100.00
  • Individual contributions$61,087.1558%
  • PACs and other committees$350.000%
  • Candidate’s own money (contributions and loans)$44,419.3942%
  • Other receipts (loans from others, refunds, interest)$100.000%

Self-funding: $44,419.39 (42% of money raised): $17,419.39 given and $27,000.00 lent by the candidate. $27,000.00 of loans repaid so far.

Raised and spent over time

Report-by-report history is shown for the current cycle.

Outside spending

  • Independent expenditures supporting William Lawrence O'Brien$0.00
  • Independent expenditures opposing William Lawrence O'Brien$504.80

FEC totals for the 2020 cycle, including groups that are not political committees, retrieved October 24, 2026.

Independent expenditures by committees that are not part of the campaign, as reported by those committees. This money is spent separately, not given to the candidate.

The race

New Hampshire U.S. Senate, 2020 · 5 registered candidates

CandidateRaisedCash on handThrough
William Lawrence O'Brien (R)$105,956.54$0.002020-06-24
Jeanne Shaheen (D)$18,172,382.69$1,118,461.932020-12-31
Bryant 'Corky' S. Messner (R)$7,150,052.78$58,300.132020-12-31
Donald C. Bolduc (R)$1,076,113.80$32,180.512020-12-31
Justin F O'Donnell (L)$6,240.00$4,477.932020-10-14

Polling and ratings

Race ratings

Recent polls

PollsterDatesSampleMargin of errorResults
American Research GroupOctober 26–28, 2020600 (LV)± 4%Jeanne Shaheen 57% · Bryant Messner 40%
University of New HampshireOctober 24–28, 2020864 (LV)± 3.3%Jeanne Shaheen 54% · Bryant Messner 43%
Saint Anselm CollegeOctober 23–26, 20201,018 (LV)± 3.1%Jeanne Shaheen 54% · Bryant Messner 39%
YouGov/UMass LowellOctober 16–26, 2020757 (LV)± 4.5%Jeanne Shaheen 57% · Bryant Messner 38%
University of New HampshireOctober 9–12, 2020899 (LV)± 3.3%Jeanne Shaheen 55% · Bryant Messner 40%
Suffolk UniversityOctober 8–12, 2020500 (LV)± 4.4%Jeanne Shaheen 51% · Bryant Messner 36%

Ratings and polls as listed on Wikipedia: 2020 United States Senate election in New Hampshire (retrieved October 23, 2026), licensed CC BY-SA 4.0. TerraCivic does not rate races or compute its own average.

Sources and updates

  • Money: FEC bulk data (candidate summary, committee master, committee-to-candidate contributions), retrieved October 23, 2026. FEC candidate page · Principal campaign committee: BILL O'BRIEN FOR NEW HAMPSHIRE.
  • Polling, ratings and candidate status: Wikipedia, retrieved October 23, 2026 (CC BY-SA 4.0).
  • Status shown above comes from the race’s Wikipedia page.

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