The lesser of two evils?

www.thecatholicthing.org_images_voteCatholics who desire to remain faithful to Church teaching, and thus to God, naturally do not want to vote for anyone who favors abortion in any circumstance or who holds other positions not in agreement with the Church on what Pope Benedict XVI called the non-negotiable issues — human life, marriage and family, and religious liberty. But a question arises every election cycle: Is it ever justified to vote for the lesser of two evils, that is, for a candidate who does not hold the Church’s teaching on abortion, but whose position is less extreme than another candidate’s?