Joseph P. Kennedy III
Last held office: U.S. House, MA-4 (2013–2021). Ran in 4 elections between 2012 and 2018, winning 4.
Last office: U.S. House, MA-4Born 1980
- Last margin
- +40.3
- Won 2016
- Elections
- 4
- 2012–2018
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Nov 7, 2026, 3:00 PM ET
Career
Offices held, and every time Kennedy was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Every race Kennedy has run
Margin: how far Kennedy finished ahead of (+) or behind (−) the runner-up.
| Year | Office | Stage | Result | Opponents | Share | Margin | Raised |
|---|---|---|---|---|---|---|---|
| 2018 | U.S. House, MA-4 | General | Won | Unopposed | 97.7% | — | $4.5M |
| 2016 | U.S. House, MA-4 | General | Won | David A. Rosa (R) | 70.1% | D+40.3 | $3.1M |
| 2014 | U.S. House, MA-4 | General | Won | Unopposed | 97.9% | — | $2.7M |
| 2012 | U.S. House, MA-4 | General | Won | Sean Bielat (R), David A. Rosa (I) | 61.1% | D+25.2 | $4.2M |
Source: 99chambers results archive
Campaign money, 2017–18
- Raised
- $4.5M
- Spent
- $3.1M
- Cash
- $4.2M
Source: FEC filings through Dec 31, 2018Updated Oct 8, 2026, 10:37 AM ET
Seats Kennedy has held
- U.S. House, MA-4 · 2013–2021
Source: 99chambers results archive
Who Kennedy has run against
- David A. Rosa (R) · 2016 election, won
- Sean Bielat (R) · 2012 election, won
Source: 99chambers results archive
How we know Kennedy
One person, matched across every source we use.
- Bioguide K000379
- FEC H2MA04073
- Wikidata Q1707784
- Ballotpedia Joseph Kennedy III
- Vote Smart 141275
- GovTrack 412543
- OpenSecrets N00034044
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Nov 7, 2026, 3:00 PM ET