That question doesn't make any sense. Why would they ever try to "court" someone who they know is already going to vote for them no matter what? It's precisely the undependables that need courting.
I think what blinds them most is typically a single-issue, driving a self-importance pining in search of affirmation from other conservative bretheren. They sit around in self-validating in-bred little clotches and discussion groups, are often found publishing tin-foil rags which quote each other amongst themselves. A sense of objectivity is driven from their midst, which ultimately leads to self-contradiction, much like "inquest" has demonstrated here already. They ultimately suffer from a mistaken, unrequited, fringe-like "messiah" complex.
Study the type of person that makes up of the membership of the declining John Birch Society. CP-ers are dead ringers for this kind of mentality, and thoroughly useless to the cause of promoting conservative thought in the main-stream, because they don't want to be mainstream. Deep down inside they think they are better than Reagan-style conservatives. Again, it harkens back to that psycho-self-importance validation need again.
Their slogan might read something like "We know we're winning, because we're losing!" The good just becomes the enemy of the perfect, and CP-ers ultimately only excell at their own intellectual self-immolation.