Federal race · 2020
Massachusetts U.S. Senate, 2020
Primary: September 1, 2020 · General election: November 3, 2020
Money raised
- Edward J. Sen. Markey (D)$12M raised · $1.6M on hand
- Joseph P Kennedy III (D)$11M raised · $13K on hand
- Joseph P Kennedy III (D)$11M raised · $13K on hand
- Shannon Liss-Riordan (D)$3.2M raised · −$168 on hand
- Shiva Ayyadurai (R)$1.8M raised · $58K on hand
- Kevin J O'Connor (R)$947K raised · $63K on hand
- Steve Pemberton (D)$475K raised · $12K on hand
- Edward James Mazzuchelli (I)$6K raised · $659 on hand
Raised Cash on hand · bars are blue for Democrats, red for Republicans, gray for others
Candidates
| Candidate | Status | Raised | Spent | Cash on hand | Through |
|---|---|---|---|---|---|
| Edward J. Sen. Markey (D) | Won the general election (66.15%) | $11,823,465.97 | $12,971,097.07 | $1,642,211.38 | 2020-12-31 |
| Joseph P Kennedy III (D) | Registered candidate (raised or spent over $5,000) | $11,400,834.45 | $15,561,023.21 | $12,992.34 | 2020-12-31 |
| Joseph P Kennedy III (D) | Registered candidate (raised or spent over $5,000) | $11,400,834.45 | $15,561,023.21 | $12,992.34 | 2020-12-31 |
| Shannon Liss-Riordan (D) | Withdrawn | $3,242,867.09 | $3,243,035.05 | −$167.96 | 2020-08-28 |
| Shiva Ayyadurai (R) | Lost the general election (0.59%) | $1,811,516.85 | $1,753,745.51 | $58,122.82 | 2020-12-31 |
| Kevin J O'Connor (R) | Lost the general election (33.05%) | $947,013.91 | $884,050.83 | $62,963.08 | 2020-12-31 |
| Steve Pemberton (D) | Withdrawn | $475,360.25 | $463,554.33 | $11,805.92 | 2020-12-31 |
| Edward James Mazzuchelli (I) | Registered candidate (raised or spent over $5,000) | $5,625.00 | $4,965.67 | $659.33 | 2020-12-31 |
Totals from the FEC candidate summary file, retrieved October 23, 2026. A dated snapshot, not live reporting; each candidate’s FEC page is the official source.
Total spent on this race
$38,869,419.47 = candidates’ own spending $30,605,336.35 + outside spending $8,264,083.12
| Candidate | Outside spending for | Against | Electioneering and member messages |
|---|---|---|---|
| Edward J. Sen. Markey | $3,963,611.67 | $1,148,980.21 | $0.00 |
| Joseph P Kennedy III | $3,144,170.35 | $7,261.13 | $0.00 |
| Kevin J O'Connor | $0.00 | $59.76 | $0.00 |
Candidates’ own spending is their committees’ disbursements less transfers to other committees, contributions to others, loan repayments and refunds (FEC committee summary). Outside spending is independent expenditures, electioneering communications and company or union member communications for or against these candidates (FEC totals by candidate from regular reports, retrieved October 24, 2026; the latest 24- and 48-hour notices are not included yet). Party coordinated spending is not split by race and is not included. All the money
Polling and ratings
Race ratings
Recent polls
| Pollster | Dates | Sample | Margin of error | Results |
|---|---|---|---|---|
| MassInc | October 23–30, 2020 | 929 (LV) | – | Ed Markey 60% · Kevin O'Connor 29% |
| YouGov/UMass Amherst | October 14–21, 2020 | 713 (LV) | – | Ed Markey 65% · Kevin O'Connor 26% |
| Remington Research (R) | September 16–17, 2020 | 907 (LV) | ± 3.3% | Ed Markey 50% · Kevin O'Connor 40% |
| Change Research | August 23–25, 2019 | 1,008 (RV) | ± 3.1% | Ed Markey 44% · Charlie Baker 45% |
| Change Research | August 23–25, 2019 | 1,008 (RV) | ± 3.1% | Shannon Liss-Riordan 35% · Charlie Baker 54% |
| Change Research | August 23–25, 2019 | 1,008 (RV) | ± 3.1% | Joe Kennedy III 49% · Charlie Baker 41% |
Ratings and polls as listed on Wikipedia: 2020 United States Senate election in Massachusetts (retrieved October 23, 2026), licensed CC BY-SA 4.0. TerraCivic does not rate races or compute its own average.
Results
| Candidate | Party | Votes | Share |
|---|---|---|---|
| Ed Markey | Democratic Party | 2,357,809 | 66.15% |
| Kevin O'Connor | Republican Party | 1,177,765 | 33.05% |
| Shiva Ayyadurai | Independent | 21,134 | 0.59% |
As listed on Wikipedia; official results come from the state election office.
TerraCivic shows public filings without scores, grades or judgments about any candidate.
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