Here is the conclusion:
As I write these last words, I am aware that they may sound like political spin. That is far from the case. There were many other contentious issues on which I advised the President—affirmative action, gay marriage, contraception, offshore oil and gas exploration, international trade, patent protection, even veterans’ benefits. In each of these, political considerations and calculations played at least some role in the development of policy, as they always have and always will. What made our deliberations on the stem-cell issue unique was, precisely, the absence of that element. Bush knew that whatever his decision, it was bound to alienate millions of Americans. Their ranks would include both political supporters and many who, if the decision went another way, might be drawn to reconsider their aversion to him. Our discussions were focused throughout on reaching a coherent and consistent position where the President could stand with honor for as long as the facts on the ground remained as they were. We did not dwell at all on how that position would play politically.HT: Powerline Blog
In the coming decades, scientific advances will compel Presidents and politicians to confront vexing choices on subjects that were once solely the province of dystopian science fiction: human cloning, fetal farming, human-animal hybrid embryos, and situations as yet unimagined and unimaginable. If we are to benefit from the great promise of the age of biotechnology while preventing grave ethical abuses, we can only hope that future Presidents will be guided by the same seriousness with which George W. Bush pursued the question of stem-cell research, as well as by his stout refusal to be seduced by the siren song of political expediency.