An interesting discussion has been unfolding for several months on PD, and it’s time to consolidate it into one place.

Which candidates could you absolutely not vote for? We’re not talking about holding your nose and voting for the lessor of two evils, we’re talking about the candidates who inspire you to stay home.

Newt? Romney? Santorum?

What if a latecomer shocked the world and jumped in? Are there any other dark horses who could never, under any circumstances, earn your vote in November?