John McCain's "spiritual guide" explains that we need to understand America's purpose as waging a broad-brush campaign against Islam:

A certain number of clueless liberals are going to wonder why this isn't nearly as big a deal as Reverend Wright, so in case you don't get it the difference is that anti-Muslim bigotry is a fairly mainstream and popular sentiment in the United States so associating with the Daniel Pipes' and Rod Parsley's of the world is only a problem in the actual, substantive sense of indicating that McCain's foreign policy views are bad and dangerous, not in the freak show "this'll hurt in November in Pennsylvania" sense.