Rubio Moves Ahead on Kalshi for 2028 Presidential Race

Marco Rubio has become the top choice on one prediction market tracking the 2028 presidential election, narrowly surpassing Vice President JD Vance and California Gov. Gavin Newsom.

Trading on Kalshi places Rubio's chances of winning the presidency at 19%, while Newsom's are at 18% and Vance's at 17%. 

The standings reflect trading activity rather than polling data, and positions have shifted repeatedly within short periods. Prediction market apps allow participants to buy contracts tied to future events, with prices reflecting the market's collective expectations. 

Other platforms show a different order. On Polymarket, Vance currently leads the field with a 21% probability. Rubio and Newsom both hold 17% on that market. 

Rubio's recent prominence in foreign policy discussions has coincided with the movement in trading markets. He has been linked to the administration's Operation Epic Fury against Iran and has been associated with the capture of Venezuelan leader Nicolas Maduro. 

President Donald Trump also recently suggested that Rubio could play a role in encouraging political change in Cuba. Trump said Cuban citizens trust Rubio and noted the senator's ability to communicate in Spanish. 

Rubio has previously avoided framing the 2028 race as a potential contest with the vice president. In comments last year, he indicated he would support Vance if the vice president pursues the Republican nomination. 

Reports also indicate Trump has repeatedly raised the question of which Republican figure might succeed him. According to The Wall Street Journal, Rubio received a stronger response from the audience when Trump asked supporters to choose between Rubio and Vance. 

Lawsuit challenges Kalshi over unpaid $54 Million market 

The prediction market operator drawing attention to Rubio's standing has also been facing legal action recently connected to a separate political contract involving Iran's leadership. 

A class-action complaint filed in the US District Court for the Central District of California alleges Kalshi failed to pay $54 million owed to traders who predicted Iran's leader, Ayatollah Ali Khamenei, would leave office before March 1. 

Khamenei died on Feb. 28 during US-Israeli strikes that killed several senior Iranian officials. The military action followed months of US deployments of forces in the region. 

The lawsuit claims Kalshi invoked a death-related clause only after the strike became public, preventing traders from collecting winnings tied to the contract. Plaintiffs argue the market wording allowed Khamenei to leave office for any reason, including death. 

Court filings state participants widely believed death was a plausible way the 85-year-old leader could depart from power, given escalating military tensions. 

The complaint also claims trading continued while early reports of Khamenei's death circulated publicly. 

Kalshi disputed those allegations. A company spokesperson said the platform's rules were established before trading began and were not changed after the strike. The spokesperson added that safeguards were included to prevent contracts from paying out based directly on a person's death.