An abortion is a medical procedure and anyone who believes in the natural right of liberty or the principle of small government should agree to limit the government's oversight in doctor-patient interactions. A huge majority of abortions are performed during the first 4.5 months. A cluster of cells isn't a human life. Sure, at 6 weeks there's a "heart beat" but that's not a heart. It's the beginning of a thin paracardium inflating and deflating slowly. The brain at this point is still not developed enough to form thoughts or emotions. That fetus isn't human and abortion is a medical procedure, not murder.