UK Polling Report, under the heading "WOULD YOU VOTE FOR AN ATHEIST" concludes -
"In the US survey, the most electoral objectionable group was atheists, with 53% of Americans saying they would not vote for an otherwise well-qualified Presidential candidate who was an atheist. One would expect that figure to be much lower in the UK, but actually it is still surprisingly high at 20%. One might not have guessed it, but not believing in God would appear to be almost as much of an electoral handicap for a potential leader in the UK as being Muslim or gay."
I appreciate that becoming President or Prime Minster is somewhat different from being a back-bench MP. But I was an MP for 18 years and an atheist. No constituent ever asked me what my religion was. I went to Civic Services and Church/Chapel Funerals as part of what I saw as being my civic (or personal) duty. On the other hand I attended meetings of the Humanist Society in Parliament. I neither hid nor pushed my atheism. I was fully involved in the politics of Northern Ireland, but no-one even raised religion with me - not even to ask if I was a Catholic Atheist or a Protestant Atheist. Politicians (and others) who beat the religious or anti-religious drum worry me. It is, for instance, possible to oppose faith schools without being anti-religious. Politicians should neither do God nor Anti-God. There are plenty of other things to get on with.
Hat Tip NightHawk