Actually the only thing I could find about tieing justifiable homicide to anything even remotely related to abortion, was that some pro-abortion proponents had a mis-understanding and took too over blown tooting about online in a handfull of forums when a nebraska state legislator purposed a bill that would define and defend a pregnant woman who killed someone in self defence as a justifiable act of homicide to protect her unborn child.

(political party just like religious afiliation or lack there of : is irelevant anyways imho since there are plenty of people in both parties and in all belief systems ~which includes athiests by definition~ both for and against abortion)

The abortion rights proponents said that this paticular bill would somehow provide anti-abortionists in nebraska justification for defence in the killing of an abortion doctor as justifiable homicide...which I believe is a spurious corolation designed to add yet more sophistry to the media fire at best.