Donald Trump has not publicly chosen between J.D. Vance and Marco Rubio as a possible successor, leaving open a question about whom he might back for the next presidential contest. In February, Trump said he was inclined to endorse a successor but did not want to discuss the subject at that time, according to U.S. News. That account describes his position then; it does not establish a final decision about whether or whom he will endorse. The distinction matters: an expressed inclination to endorse someone is not itself an endorsement, and a refusal to discuss the question leaves the choice unresolved.
Kalshi’s market on a Trump endorsement puts Vance ahead of Rubio: traders currently assign Vance 47% and Rubio 35%, as of 8:00 a.m. ET on Oct. 1. Those prices reflect traders’ beliefs, not objective probabilities or a forecast. They are a snapshot of how the market is pricing the question at that time, not evidence that Trump has privately settled on a candidate. The leading prices also do not make the public record less uncertain: the supplied reporting says Trump declined to take sides between the two men.
The board shows no price change for either Vance or Rubio over the past day or the week. Latest-day trading was limited, with 165 contracts traded over the last day for Vance and 29 contracts traded over the last day for Rubio, so the difference between the displayed prices should not be mistaken for a fresh surge of activity. The market also lists outcomes in which Trump endorses himself, endorses no one, or backs other named figures. Those listed alternatives show that the board is not limited to the two leading names, but they do not establish which possibility will occur. The board’s figures remain market signals, not confirmation of an endorsement.
Trump’s public remarks leave room for more than one path. He has often said Vance and Rubio should run together on the same ticket, while his February comments stopped short of choosing either man. Rubio had not ruled out running and had praised Vance as a potential candidate. Vance said he would talk to Trump about possibly running after the November midterm elections. These reported positions do not answer whether either man will ultimately seek the nomination or whether Trump will endorse one of them. They show why the question remains open even with Vance leading the market’s listed prices.
For now, the available reporting points to no choice between Vance and Rubio, while Kalshi’s prices place Vance ahead. Trump could endorse Vance or Rubio, delay a choice, or endorse no one; the evidence here does not resolve those possibilities. Nor does the market say what Trump will decide: it records traders’ current beliefs about the contract question. The useful distinction is between the market’s ranking of possible outcomes and a public endorsement, which the supplied reporting does not document. A newer statement or other evidence of a decision would change the picture; without it, the endorsement remains unsettled.
