According to early polls, JD Vance remains the favorite for the 2028 Republican nomination, but Marco Rubio is closing the gap. The vice president recently endured a difficult stretch: his book *Communion* received mixed reviews, a memorandum of understanding with Iran collapsed days after signing, and a three-hour Joe Rogan interview left him on the defensive. On the podcast, Vance alleged Israeli officials sabotaged Iran negotiations and speculated about Jeffrey Epstein's intelligence ties, drawing sharp criticism from Ben Shapiro and others who compared his rhetoric to the Democratic left.

The failed Iran MOU — negotiated under Vance's oversight — resumed hostilities and complicated Strait of Hormuz traffic. Vance blamed Israel rather than reassessing his strategy, a pattern critics find troubling. Meanwhile, Rubio has avoided such ambiguities, aligning firmly with the party's pro-Israel majority and shining diplomatically in Lebanon.

The divide reflects competing GOP currents: Vance's isolationist skepticism of historic alliances versus Rubio's traditional internationalism. A Washington Free Beacon poll shows primary voters favor Rubio's strong Israel stance, yet Tufts data reveals young men — skeptical of interventionism — gravitate toward Vance. Rubio says he won't challenge Vance if he runs, leaving the race unresolved but increasingly defined.