"...re-establish within the executive branch respect for, and protection of, the unalienable rights of the unborn children in the womb – to make sure nothing was done by the executive branch of the United States that violated the Constitution of the United States in this regard." - Alan Keyes
You seem to be avoiding the question. I want to know what, specifically, a president would do to overturn Roe v. Wade. Considering Ronald Reagan, a champion of the pro-life movement, was unable to do anything.
I suppose that the president could perhaps forbid the actual disbursement of any federal funds toward those providing abortions, but I can't see any ability for him to do anything else. What else could he do--have people arrested for performing abortions notwithstanding the fact that there would be no legal basis for such arrest?