Even though the next presidential election is still more than 500 days away, it's never too soon to be prepared. After all, Obama hasn't stopped campaigning since Election Day, 2008. To begin with, and let me be very clear about this: No third-party candidate, no matter how sincere or how well-funded – whether the party calls itself Libertarian, Constitution, Tea Party, Bull Moose or Whig – is ever going to win a national election. All a third-party candidate will do is ensure that a liberal will be able to win with just 40-45 percent of the vote. Also, anyone who...