Democratic Presidential Nominee 2028

According to the latest prediction market data for the query “Democratic Presidential Nominee 2028”, traders have formed a strong consensus.

Currently, Jon Ossoff is dominating the market with an overwhelming 26.9% chance of winning. Alexandria Ocasio-Cortez follows in second place at 14.5%, while Gavin Newsom sits in third with 10.4%. The betting volume for this specific market has already reached $1,318.7M, reflecting intense industry interest.

To better assess where each potential outcome stands, the market can be segmented into three distinct trading tiers based on implied probability and contract pricing:

🥇 Tier 1: The Dominant Leader

• Jon Ossoff (26.9%): Currently commanding the highest probability, Jon Ossoff is heavily favored by the order book. Traders looking to back this outcome face a “Buy Yes” contract price of 27¢, signaling a high degree of market conviction. This contract alone has generated $15.0M in volume.

🥈 Tier 2: The Primary Challengers

• Alexandria Ocasio-Cortez (14.5%): Positioned as the most viable alternative, Alexandria Ocasio-Cortez maintains a 14.5% chance of resolving true. Its “Buy Yes” shares currently trade at 15¢.
• Gavin Newsom (10.4%): Sitting in third place with a 10.4% probability, the market shows measured skepticism toward Gavin Newsom, treating it as an outside wildcard unless momentum shifts.

🥉 Tier 3: The Long-Tail Options (Combining for ~48.3%)

Beyond the top three choices, a wide field of macro variables and long-shot outcomes are being tracked. While their individual probabilities hover low, they represent crucial hedges for speculative traders:

• Alternative Options: This includes Pete Buttigieg (5.4%), Kamala Harris (5.4%), and Josh Shapiro (4.9%).
• Speculative Volume: Despite low statistical likelihood, certain long-tail contracts like Andy Beshear are still attracting notable interest.

This market will resolve to “Yes” if the named individual wins and accepts the 2028 nomination of the Democratic Party for U.S. president. Otherwise, this market will resolve to “No”.

The resolution source for this market will be a consensus of official Democratic Party sources.

Any replacement of the democratic nominee before election day will not change the resolution of the market.

While human consensus and speculative volume shape the broader prediction market, our quantitative algorithms offer a data-driven counter-perspective. By analyzing fundamental signals, underlying trends and historical distributions, our AI Valuation model calculates an independent “Fair Value” probability for each outcome.

Comparing this Fair Value against the current Trade Value uncovers major disparities — known as the Expected Value (EV) Gap. Contracts with a positive EV Gap represent statistically underpriced outcomes, whereas a negative EV Gap flags a potential market overreaction.

Top AI Alpha & Mispriced Arbitrage Opportunities

Based on the latest data model run, several key contracts stand out with significant deviations:

• The Most Overvalued Outcome Jon Ossoff currently trades at 26.9%, but our AI places its Fair Value at just 18.1%. This creates a large negative EV Gap of -8.8%, suggesting the crowd may be overhyping this outcome and driving the premium too high.
• The Best Value Play (Highest EV) Our model identifies James Talarico as the premium value opportunity on the board. While the market only assigns it a 2.4% trading probability, our AI’s Fair Value assessment sits at 47.1% — yielding an impressive +44.7% EV Gap.
• Under-the-Radar Dark Horses Other notable discrepancies include Chris Murphy (EV Gap: +23.9%) and Wes Moore (EV Gap: +23.1%). These long-tail opportunities are heavily discounted by the live order books despite stronger statistical backing from our predictive model.