Mark Kelly is a Democratic U.S. Senator from Arizona and former NASA astronaut. The 2028 Democratic presidential nomination process will determine who the party's presidential candidate is, with the Democratic National Convention typically held in the summer of an election year. As of now, Kelly holds a 3% chance according to this prediction market, suggesting traders view him as a long-shot candidate for the nomination. Kelly has significant name recognition from his Senate seat and space background, but would face competition from higher-profile candidates and sitting vice presidents or governors with established national followings. The market pricing reflects his current position outside the top tier of presumed frontrunners. This prediction market will resolve based on the 2028 Democratic National Convention outcome, when delegates officially nominate the party's presidential candidate. The odds trajectory will likely shift as the 2028 campaign develops, with potential changes tied to polling data, endorsements, and campaign announcements over the coming years.