Romney's message has been so out of tune and alienating to middle and working class America that neo-con William Kristol has all but conceded Romney's defeat and in a semi-tongue-in-cheek fashion suggested he step aside for a conservative dream ticket of Ryan-Rubio. Even conservative-light Republican apologist and NY Times columnist David Brooks got in on the Romney bashing with his column entitled Thurston Howell Romney.
Perhaps the best description of Romney's candidacy that I have heard to date comes from the always perceptive, St. Louis Park native, Tom Friedman who described the 2012 race as the first Presidential campaign in history "...where both candidates are running on I'm not Mitt Romney...". Friedman goes on to give his hypothesis that the reason Romney sticks his foot in his mouth so often is because he is not authentic, not organic. Rather, Romney is just saying what he believes the far right, now the base of the Republican Party, wants to hear.
Listen to Charlie's always excellent interview of Mr. Friedman: http://www.charlierose.com/view/interview/12561