Quote Originally Posted by bae View Post
It's a games-theory problem, a modification of the classic prisoner's dilemma. If we each choose to "cooperate", we can elect someone great, but who "has no chance". If instead we "defect", we end up with the lesser of two evils.

The rational move is to cooperate, but people aren't rational.
Normally, I proceed on the basis of William F Buckley's principle that you should always vote for the most conservative candidate with a reasonable chance of winning. That does not seem to be an option in 2016.