President Donald Trump reportedly asked two dozen donors at Mar-a-Lago what they thought of Vice President JD Vance and Secretary of State Marco Rubio for 2028, with the crowd applauding louder for Rubio. What The $373 Million Market SaysOn Polymarket’s 2028 Republican nominee market, Vance leads at 39% to Rubio’s 26%. But the trajectory favors Rubio. His odds have nearly tripled since December. The market has drawn $373 million in total volume. On Kalshi, the gap is narrower: Vance at 38%, Rubio at 32%. Speaking to governors in February, Trump called Vance “a brilliant guy” but added “we gotta slow...