No....if the FED reverses RvW, then the matter simply goes to the states, Xo. No one is "banning abortions". If McCain/Palin happen to win the Presidency, there will ne no "banning abortions", it's not within their power.
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If McCain appoints another Scalia, Alito or Thomas to the SC, they coud well overturn Roe v. Wade, and then at least some states would be free to pass laws under which doctors like Hendren were arrested and their medical licenses would be taken away. Other doctors would be terrorized into not performing abortions.
Obama would NOT appoint such judges, and women would continue to have control over their own bodies, which is as it should be.
Do not tell me that we should elect these clowns because they would be powerless to prevent abortions, because that is untrue.
You can show all the grisly photos of fetuses and vacuum cleaners you wish, but ti is still none of anyone's business whether a woman bears a child but the woman's alone. You can show photos of what steak knives can do as well, but that is no reason to ban steak knives.
This is a basic human freedom. And no, fetuses do not enjoy such a freedom becaue they are not human until they are born.