PHOENIX — Jimmy McCain, a son of former Arizona senator and 2008 Republican presidential nominee John McCain, said this week he has registered as a Democrat and will vote for Vice President Kamala Harris, a valuable nod of support for the Democratic nominee in a battleground state.
Meanwhile, Trump’s running mate, Ohio Sen. JD Vance, is scheduled to appear outside Phoenix Wednesday at a rally with the conservative youth organizing group Turning Point USA, which has been instrumental in remaking the Arizona GOP as a faithful organ of former Pr …