The alleged short list includes, in no particular order:
JD Vance
Marco Rubio
Doug Burgum, and
Tim Scott
Of course there could be others not teased.
I’ll discount Rubio for state residency reasons.
Trump already has the MAGA vote locked up and doesn’t benefit from a divisive Vance.
Scott may be too much a sycophant even for Trump but he may think a Black man of whatever position will further soften Biden’s Bkack support.
But I’ll go with Burgum. And as late as possible to keep all the attention on him for as long as possible.