Rather irrelevant to my support. I am pro-life, but I do not think anything can change in regards to that argument. Electing a pro-life official isn't going to change anything, just as much as electing a pro-choice candidate isn't going to change anything. As long as they're both libertarians they aren't going to use government to push their beliefs on anyone. If we want to end abortion in this country we need to introduce a constitutional amendment ourselves and then change the country so completely that they'll ratify the amendment come election time.
Dr. Paul himself has noted the lack of good an official can have on this debate. It is the changing morality of the society that dictates abortion laws, it is not the morality of the government officials.