There is likely no one more consistent or more vocal in his libertarian and Catholic principles than the indefatigable Andrew Napolitano. Here is his interview with Nick Gillespie from Reason where he talks about the 2016 election and the sanctity of life as a libertarian position:

“My opposition to abortion is not only because of Church teaching, but also because of a rational examination of the baby growing in the womb and a belief in the non-aggression principle,” Napolitano explains. “The non-aggression principle prevents you from interfering with the life or the property of another human being without moral justification. There is no moral justification for killing a child in the womb!”