The Rudy-Romney dust-up; are they both right?

Things are getting quite nasty on the Republican side of the presidential race, especially between Rudy Giuliani and Mitt Romney. That these two would clash seems almost inevitable, given the stakes in New Hampshire where Romney leads but Giuliani is within striking distance. A Romney win in the Granite State, coupled with a win in Iowa, would give him a plausible claim to frontrunner status. A Giuliani win might represent a knockout blow to Romney.
The Washington Post offers this account of the weekend war of words between the two. Romney argues that Giuliani fails to measure up as