In 2008 Dr. Baumgartner published research that presented a model that identified the factors that seem to be important in the selection of a vice presidential running mate. Trump’s selection of Vance (over reported finalists Marco Rubio and Tim Scott) checks several of these boxes:
*Youth (Vance is younger than Rubio)
*Military experience
*Exposure in national media (although all three have some degree of this)
*From Ohio, a competitive state that adds regional balance to the ticket
