When Virginians head to vote come November they will decide between incumbent Sen. Tim Kaine (D-VA) and the now Republican nominee who is a retired Navy captain Hung Cao. “Virginia Republicans have officially nominated Hung Cao to run against me,” tweeted Kaine, who was once hitched to be presidential candidate Hillary Clinton’s running mate. “He’s a MAGA extremist who looks out for himself first—not Virginians. He won’t show up for them.” The post featured some bulleted warnings on a slick, red-colored graphic. Want more breaking political news? Click for the latest headlines at Raw Story. Ka…