I don't know what your religious beliefs are but when I read this I thought of you. This is from a Catholic site that is anti-Bush but also wants an end to abortion: 

Is it ok to vote for a pro-abortion candidate?

Let's face it. As Catholics, we recognize legalized abortion as responsible for the deaths of hundreds of thousands of innocent people each year in our country. This is a huge issue.

That said, the relevant question here is who we should elect as president. Bush does select Supreme Court justices according to a pro-life litmus test, but we may ask whether this is what we want. The job of the Supreme Court is to interpret and apply the Constitution, and the Constitution is completely ambiguous on the issue of abortion. We do not need Supreme Court justices selected by any criteria other than their ability to interpret the Constitution faithfully and rationally. We need a Constitutional amendment to end legal abortion in the proper way, in a way that will last. This effort will have nothing to do with the Supreme Court and everything to do with the hearts and minds of all Americans.

Besides appointing judges, the President has no other significant role in the abortion debate. His role *is* to act as Commander in Chief of the military, to guide the legislation of Congress, to act as our representative to the world, to appoint advisors and others to run our government, and so on. Bush has made an utter mess of it.