Military records while good don’t seem to be an issue or factor anymore. Trump’s attacks on candidates military records seems to have cemented that and the left and right don’t seem to care about a military. He was picked to double down on MAGA. They did this because they thought they were going to beat Biden.
That disappears quickly if Harris picks Mark Kelly. Vance was a combat correspondent- basically a uniformed news reporter. Kelly was an attack pilot with combat missions in Desert Storm. Vance’s military service is honest, laudable, and modest, and can afford modest advantage… But not if it ends up being in comparison to someone like Kelly.