How many Democratic House Incumbents will not win their Primary?

Polymarket traders put "10-12" at 75.4% on "How many Democratic House Incumbents will not win their Primary?". Unchanged from yesterday. There are 6 possible outcomes.

Most likely right now
10-12
75%
PoliticsVol -Total volume $33KLiquidity $106KComments 2
Current probability

Aug 26 · right column is the 24-hour change (pp)

0%50%100%
10-12
75.4%
13-15
13.3%
1.9
7-9
3.65%
1.2
>15
0.55%
4-6
0.40%
<3
0.05%

Probability over time

10-12
13-15
7-9
>15
4-6
<3
02550751008/258/26
2026-08-25 ~ 2026-08-26 · y-axis %

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Probabilities are Polymarket trade prices, formed by participants betting real money. They are not official forecasts and are a poor basis for investment decisions.