The GOP nomination is Vance’s to lose. And he might lose it.

The race to the GOP nomination likely runs through Vice President JD Vance and Secretary of State Marco Rubio. | Brendan Smialowski/AFP via Getty Images On  a recent episode of Today, Explained, I explored Donald Trump’s ongoing succession wars, and whether the president that’s upended the Republican Party is taking an active role in deciding who might replace him.  The short version: The race to inherit MAGA, already underway, runs through Vice President JD Vance and Secretary of State Marco…