Rudy Giuliani will unveil a big endorsement at a press conference today in New Hampshire — that of Manchester Mayor Frank Guinta. Guinta defeated a Democratic incumbent in an upset in 2005, and was re-elected earlier this month as mayor of the state's largest city.

Giuliani's campaign has been focusing a lot of effort on New Hampshire recently, running their first round of TV ads there instead of in Iowa. This may be an attempt by the campaign to downplay Iowa and then salvage a decent showing in the New Hampshire primary.