Abortion is not Libertarian
The Honorable Ron Paul, quoted in a LewRockwell.com Blog post entitled Eugenics: Past, Future, and Present:

A libertarian's support for abortion is not merely a minor misapplication of principle, as if one held an incorrect belief about the Austrian theory of the business cycle. The issue of abortion is fundamental, and therefore an incorrect view of the issue strikes at the very foundations of all beliefs.

Libertarians believe, along with the Founding Fathers, that every individual has inalienable rights, among which are the rights to life, liberty, and the pursuit of happiness. Neither the State, nor any other person, can violate those rights without committing an injustice. But, just as important as the power claimed by the State to decide what rights we have, is the power to decide which of us has rights.

Today, we are seeing a piecemeal destruction of individual freedom. And in abortion, the statists have found a most effective method of obliterating freedom: obliterating the individual. Abortion on demand is the ultimate State tyranny; the State simply declares that certain classes of human beings are not persons, and therefore not entitled to the protection of the law. The State protects the "right" of some people to kill others, just as the courts protected the "property rights" of slave masters in their slaves. Moreover, by this method the State achieves a goal common to all totalitarian regimes: it sets us against each other, so that our energies are spent in the struggle between State-created classes, rather than in freeing all individuals from the State. Unlike Nazi Germany, which forcibly sent millions to the gas chambers (as well as forcing abortion and sterilization upon many more), the new regime has enlisted the assistance of millions of people to act as its agents in carrying out a program of mass murder.

We must promote a consistent vision of liberty because freedom is whole and cannot be alienated, although it can be abridged by the unjust action of the State or those who are powerful enough to obtain their own demands. Our lives, also, are a whole from the beginning at fertilization until death. To deny any part of liberty, or to deny liberty to any particular class of individuals, diminishes the freedom of all. For libertarians to support such an abridgement of the right to live free is unconscionable.

[link via A conservative blog for peace]