nearly one in five respondents on the survey said they believed he is a practitioner of Islam, while only 34 percent of Americans correctly identified him as a Christian, down sharply from a year earlier. The poll was conducted by the Pew Forum on Religion and Public Life. Meanwhile, the percentage of people who say they are unsure what religion Obama practices has risen to 43 percent, from 34 percent a year ago. The poll found one third of conservative Republicans believe Obama is a Muslim, a figure that has nearly doubled. But the president's faith was incorrectly identified by...