I don't know how it works in the USA, but in France, you can vote "blank". This is what you do when no candidate fits your view. It's better than abstention because it still counts in the stats (and might prevent a candidate from gaining absolute majority)
Actually, in France, in most elections if you vote 'blank' (leaving the envelopp empty in the ballot), it will be considered the same as abstention (not showing up at all for the vote). There is a recurring debate about whether the two things should be counted differently (and if so - how). This is the kind of 'recurring debates' that we French people love - at least when discussing that we're not talking about serious issues :P
