Only one can run without tearing the MAGA base apart. I don't care if the two of them choose who that is by demographic polls, fire in the belly, drawing a short straw or "rock, paper, sissors" --- but only one runs and the other helps carry him into the Whitehouse.
Rubio has stated that if Vance runs, he won't run against him. Rubio certainly has paved his way and earned his stripes and has become a tremendous asset to Trump's administration.
That's a ways off and the GOP has to make it through the midterms, otherwise, if they don't hold onto the Senate or take the House I don't see our country surviving as we know her, nor do I see the GOP being seated in 2028.