Sigh...I hate the two party system. Unless there's a horrible threat, like a racist or Islamophobe or something like that as one of the candidates, I'll always vote for a third party if I have the choice. That way, like you, my conscience is clear. Perhaps it's self-serving or there's some idealism left in me, but I hold out hope that the electorate will wise up and vote out the tools. Of course, that probably won't come to anything.