Mitt Romney has been in London this week raising money from bankers and trying to establish his foreign policy credentials. Just before he arrived Rick Warren announced he will repeat the high profile election forum he held in 2008 with Barack Obama and John McCain, this time with Obama and Romney.  The exact date is still to be determined but Warren is looking at some time in the week after August 20th. In 2008 Warren interviewed the candidates separately and the candidates were unable to watch the interview given by their rival. Warren said he would follow the same formula his year and the programme would last two hours. He said the 2008 forum was one of the most highest rated campaign events on television, drawing more viewers than any other debate. Warren gave the invocation at the 2009 inauguration. Meanwhile evidence suggests the power of religion in American life may be waning. More Americans than ever before (19 per cent) now say they have no religious affiliation and Gallup reports that only 44% of Americans have a lot or a great deal of confidence in religious institutions, a big fall from results in 1979 when the churches were the most highly rated institutions in America. Protestants have more respect for their churches than Catholics do for theirs. Catholic confidence in the church started to fall behind the rate for Protestants as long ago as in the 1980s and has gathered pace since.