John Danforth (former Missouri senator on the short list to be Bush's VP back in 2000 and an ordained Episcopalian priest) tees off in the NY Times:
...By a series of recent initiatives, Republicans have transformed our party into the political arm of conservative Christians. The elements of this transformation have included advocacy of a constitutional amendment to ban gay marriage, opposition to stem cell research involving both frozen embryos and human cells in petri dishes, and the extraordinary effort to keep Terri Schiavo hooked up to a feeding tube...In my state, Missouri, Republicans in the General Assembly have advanced legislation to criminalize even stem cell research in which the cells are artificially produced in petri dishes and will never be transplanted into the human uterus. They argue that such cells are human life that must be protected, by threat of criminal prosecution, from promising research on diseases like Alzheimer's, Parkinson's and juvenile diabetes. It is not evident to many of us that cells in a petri dish are equivalent to identifiable people suffering from terrible diseases. I am and have always been pro-life. But the only explanation for legislators comparing cells in a petri dish to babies in the womb is the extension of religious doctrine into statutory law...When government becomes the means of carrying out a religious program, it raises obvious questions under the First Amendment. But even in the absence of constitutional issues, a political party should resist identification with a religious movement. While religions are free to advocate for their own sectarian causes, the work of government and those who engage in it is to hold together as one people a very diverse country. At its best, religion can be a uniting influence, but in practice, nothing is more divisive. For politicians to advance the cause of one religious group is often to oppose the cause of another. But in recent times, we Republicans have allowed this shared agenda to become secondary to the agenda of Christian conservatives. As a senator, I worried every day about the size of the federal deficit. I did not spend a single minute worrying about the effect of gays on the institution of marriage. Today it seems to be the other way around.