18% think Obama is Muslim - poll
Nearly a fifth of Americans wrongly believe President Barack Obama is a Muslim, according to a US poll.
The number who think he is a Muslim is now 18%, up from the 11% who said so in March 2009. The proportion who correctly say he is a Christian is down to 34%.
The largest share of people, 43%, said they don't know his religion, an increase from the 34% who said that in early 2009.
The survey, conducted by the non-partisan Pew Research Centre and its affiliated Pew Forum on Religion & Public Life, is based on interviews conducted before the controversy over whether Muslims should be permitted to construct a mosque near the World Trade Centre site.