Suhail Khan, a major Republican sup porter of the Ground Zero mosque, has been lobbying GOP leaders on the Hill to back off their opposition. He's got their ear, mainly because he portrays himself as a moderate, patriotic Muslim. Yet newly surfaced videos contradict that. Khan, a Bush administration vet who sits on the board of the American Conservative Union, assures skeptics that "Park 51 community center" imam Feisal Rauf is a "moderate." Fears over the mosque are overblown, he insists, fomented by "anti-Muslim bigotry." In a recent letter to fellow Republicans, he warned the party was "alienating millions of...