U.S. President Donald Trump speaks within the Oval Workplace, with Vice President JD Vance and Secretary of State Marco Rubio standing behind him, on the White Home in Washington, D.C., U.S., April 23, 2026.
Kylie Cooper | Reuters
Secretary of State Marco Rubio is seen as more and more more likely to be the GOP nominee in 2028, in keeping with merchants on prediction market platforms.
Whereas Vice President JD Vance remains to be favored by merchants on Kalshi, his odds have slipped to simply 33% on Monday from round 50% on Jan. 1. Rubio, in the meantime, has risen to 30% from round 12% odds.
Vance was seen because the inheritor to President Donald Trump’s “Make America Nice Once more” motion, contemplating his high-profile position within the administration as formally second in command.
Nonetheless, Trump has reportedly solid doubts about whether or not he views Vance as his successor, as most just lately detailed by a report from The New York Occasions over the weekend. The Occasions stated that Trump brings up Vance’s preliminary opposition to the struggle in Iran when musing over his candidacy.
Rubio’s odds have risen all year long, however have sharply elevated across the initiation of key navy operations, together with the seize of Venezuelan President Nicolas Maduro in January and the beginning of the struggle with Iran in late February.
Rubio additionally delivered a brief impromptu speech from the White Home press room about his hopes for America in Might that he clipped right into a viral short-form video, creating questions on what the Cupboard member’s plans are for 2028.
Whereas Rubio’s position in navy conflicts has elevated his possibilities to be the Republican nominee, those self same conflicts have harm the social gathering’s probabilities of profitable the presidency as Trump’s approval rankings have fallen for the reason that begin of the 12 months. Odds that the GOP wins the White Home in 2028 have fallen to 39% on Monday from 45% earlier than the struggle with Iran.
Merchants on Polymarket give Vance a 31% likelihood of being the Republican nominee in 2028, whereas Rubio is shut behind at slightly below 27%.
Disclosure: CNBC and Kalshi have a industrial relationship that features buyer acquisition and a minority funding.

