In recent weeks America has been divided over plans to build a mosque in New York City. One in five Americans still seem to believe that the President himself is a covert Muslim and suspicion of the President's values and politics is fuelling the fires of the radical, right wing Tea Party movement. Democratic Congressman, Keith Ellison, is the only Muslim member of the US Congress. How should his party and the President respond to this wave of populist anger? With Stephen Sackur.