The Republican Party has a 2028 problem it has not yet solved publicly, and every political operative in Washington knows it. Neither Vice President JD Vance nor Secretary of State Marco Rubio, the two most prominently positioned figures for the GOP presidential nomination, has demonstrated the coalition breadth to win a general election. Vance carries the ideological weight of a movement that alienated suburban voters in 2022 and 2024. Rubio br…