Americans who believe Obama is a Christian: 34%.

Americans who believe Obama is a Muslim: 20%.

More than a third of conservative Republicans now say Obama is a Muslim, nearly double the percentage saying so early last year. Independents, too, are now more apt to see the president as a Muslim: Among independents, 18 percent say he is a Muslim, up eight percentage points.

So the less popular Obama is generally, the more likely he is to be perceived as a Muslim? Is this fair to Obama? Is this fair to Muslims?

The linked WaPo article tags on this final paragraph:

In the Time poll, 25 percent say most Muslims in the United States are not patriotic Americans. But the survey also indicates that the public's opposition to the center may be more complicated than just anti-Muslim sentiment. Fifty-five percent said they would accept a Muslim community center and place of worship two blocks from their own home.

May be more complicated! Good lord! The Washington Post has a low opinion of Americans!