Prediction Markets See Limited Relief for Gas Prices Before Election Day

Table of Contents

• You might want to know
• Main Topic
• Key Insights Table
• Afterwards...

You might want to know

• How likely are gasoline prices to remain above $4 per gallon on Election Day?
• Why could diesel prices matter to voters in states with competitive Senate races?

Main Topic

Affordability is expected to be one of voters’ leading concerns as the United States approaches the 2026 midterm elections. Among household expenses, gasoline is especially visible: drivers encounter its price regularly, and changes can quickly affect how affordable everyday travel feels. Prediction-market traders expect fuel costs to remain high through Election Day, suggesting that drivers may see limited relief before they vote.

On Kalshi, a prediction-market platform, traders assign an 87% chance that the AAA national average for gasoline will stay above $4 per gallon on Nov. 3. That forecast points to a substantial likelihood that pump prices will remain above a psychologically important threshold. It does not, however, mean traders expect prices to stay at their current level. They assign a lower probability to the average being above $4.25 per gallon on Election Day: 42%.

The difference between those two forecasts suggests that traders see a possibility of some easing while still expecting prices to remain elevated. As of Thursday, the national average was $4.36 per gallon. The market’s outlook therefore allows for a decline from that level, but does not point to confidence that gasoline will fall below $4 per gallon by Nov. 3. These probabilities are market expectations rather than guarantees, and actual prices can move in response to events that are difficult to anticipate.

Recent price movements help explain why the outlook remains uncertain. Gasoline prices initially surged in March after the start of the Iran war and the subsequent closure of the Strait of Hormuz. The strait is a critical route for oil exports from the Middle East, so its closure raised concerns about the movement of crude oil and the potential consequences for energy markets. Geopolitical disruption can affect the supply outlook and, in turn, contribute to changes in the prices consumers pay at the pump.

After the initial spike, gasoline prices continued rising and reached an average peak of $4.56 per gallon in late May. They later declined, falling as low as $3.79 per gallon in early July. That drop offered drivers a period of relief, but the decline did not last. Prices moved higher again through the rest of the summer, leaving the national average at $4.36 per gallon as of Thursday. The sequence of increases and decreases illustrates how quickly fuel costs can shift and why forecasts for a date several months away remain subject to change.

Diesel has followed a similarly concerning path, though its price has reached a higher level. Diesel prices hit new peaks in September, climbing to almost $6.53 per gallon on Sept. 22. They have since fallen to $6.28. Even after that retreat, traders on Kalshi assign 68% odds that diesel will remain above $6 per gallon on Nov. 3. As with the gasoline forecasts, this figure describes the market’s probability assessment, not a certain outcome.

Diesel prices can have effects beyond the cost of filling a vehicle. They are particularly relevant in states with large agricultural industries, including Iowa and Kansas, where fuel is important to agricultural operations and related transportation. Diesel is also significant in Alaska, which relies on it for electricity. Higher diesel costs can therefore matter to businesses and communities in different ways, depending on how heavily they rely on the fuel.

The political importance of these prices may be heightened because Iowa, Kansas, and Alaska are all home to competitive races for the U.S. Senate this November. Fuel costs do not determine how people vote on their own, and voters weigh many issues. Still, prices that affect travel, farming, electricity, and the movement of goods can add to wider concerns about household and business affordability. The impact may be particularly noticeable in places where diesel is closely connected to local economic activity or essential services.

Gasoline and diesel prices also form part of the broader political context for control of the Senate. As gas prices have remained elevated, Democrats’ chances of flipping the chamber have improved. Kalshi traders give Democrats a 63% chance of taking the upper chamber from Republican control. That forecast is another prediction-market estimate; it should not be read as a definitive result or as proof that fuel prices alone explain the party’s prospects.

Instead, the relationship between affordability and electoral expectations is best understood as one part of a larger picture. Voters may consider fuel prices alongside other costs and policy concerns, while market traders respond to the information and expectations available to them. The forecasts provide a snapshot of perceived odds at a particular time. They do not establish what prices will be on Election Day, nor do they establish how voters will respond if costs change.

There is also a disclosure relevant to readers assessing the market information: CNBC and Kalshi have a commercial relationship that includes customer acquisition and a minority investment. That relationship is important context when considering coverage involving the platform. The market figures themselves remain probabilities attributed to traders on Kalshi, while the disclosure identifies a business connection between the platform and CNBC.

Overall, the forecasts suggest that a return to lower gasoline costs before Nov. 3 is not the central expectation among traders. The odds favor gasoline remaining above $4 per gallon, even as the chance of prices staying above $4.25 is less than even. Diesel, meanwhile, is also expected by traders to remain above $6 per gallon, despite having retreated from its September peak. These projections keep energy affordability in focus as voters approach the 2026 midterms.

Key Insights Table

Afterwards...

The outlook for fuel prices may shift as energy-market conditions develop between now and Election Day. For now, prediction markets indicate that gasoline is more likely than not to remain above $4 per gallon and that diesel may stay above $6. Those expectations keep affordability in view, especially in communities where fuel costs affect agriculture, electricity, transportation, and household budgets. The forecasts are not certainties, but they offer a timely measure of the uncertainty facing consumers and candidates as the 2026 midterms approach.