The Twelfth Amendment made a series of adjustments to the Electoral College system. For the electors, it was now mandated that a distinct vote had to be taken for the president and the vice president. Further, one of the selected candidates must be someone who is not from the same state as the elector.
Couldn't count California's electoral votes.
I think the governor of NC would be an interesting choice. The current Lt.Gov. is a real nut job(currently running for Governor) though so only if he keeps his job while running.