Republican · MA
John Deaton
As of October 5, 2026, prediction markets give John Deaton (Republican) a 2% chance of winning the 2026 Massachusetts Senate race (Kalshi 1%, Polymarket 2%).
Odds in every market
| Market | Chance | Kalshi | Polymarket | 24h |
|---|---|---|---|---|
| 2026 Massachusetts Senate race | 2% | 1% | 2% | ▲ 1¢ |
Chance = this candidate's share of each market's prices, averaged across the exchanges that list it.
Campaign money
- Raised
- $1.6M
- Spent
- $849K
- Cash on hand
- $712K
- Outside groups for
- $0
- Outside groups against
- $0
Through August 12, 2026. $472K from individuals, $6K from PACs, $1.1M of the candidate's own money. FEC filings for John Deaton →
Polls
In the 2026 Massachusetts Senate race, the Parlay polling average has John Deaton at 29% against Ed Markey at 53%, from 3 polls (newest ended 2026-09-22).
Running against
- Ed Markey98%
Market prices from Kalshi and Polymarket, collected every 10 minutes. Research, not betting advice.
