Will it be Jeremiah Wright vs Mormonism?

1.50pm: ABC's Jake Tapper has a mini-profile of Fred Davis, the Republican consultant behind the Jeremiah Wright strategy documentuncovered by the New York Times:

Davis was a media consultant for McCain's unsuccessful president campaign in 2008, having come up with the "celebrity" ad that generated some buzz, and am attack ad focused on Wright that McCain refused to green-light. But he retained his relationship with the Senator and came up with the media for McCain's successful Senate re-election campaign in 2010, including the "complete the dang fence" ad.

Mark Salter, a close friend and top adviser to McCain, says of Davis, "Fred is a creative guy, but he requires round-the-clock adult supervision. If you take your eyes off him for a moment, you're chasing demon sheep, witches and the yellow peril.

Salter is referring to some of Davis's more inglorious moments in political advertising – including Christine O'Donnell's risible "I'm not a witch" ad, which made her a laughing-stock instead, and the bafflingly surreal Demon Sheep ad from the 2010 California Republican senate primary for Carly Fiorina.