Such displays of marital bliss may appear warm and spontaneous, but underneath lies a shrewd political calculation. The couple’s message is unmistakable: Romney is the lone leading GOP presidential candidate or prospective candidate still on his first marriage. More important , perhaps, he’s the only one who isn’t an admitted adulterer.

With “family values” a defining principle for many primary voters and competitors’ past foibles making headlines, Romney is clearly trumpeting an aspect of his candidacy that none of his top-tier rivals can match, observers say.

“A lot of people have made the argument that if you can’t commit to your wife, how are you going to commit to the American people?” said John Stemberger, an Orlando lawyer, activist, and member of the Arlington Group, a national coalition of influential social conservatives. “I think that’s a fair argument to make, especially when you see a history or pattern of broken commitments.”

Boston Globe

This is certainly an issue that will aid Romney in his Presidential campaign, particularly among the “family values” voters out there.  He has a monopoly on this issue among the first tier candidates.  I am, however, curious to see how high this will rank among the electorate.  Romney won the CPAC straw poll, but McCain and Giuliani have also had their share of wins and good showings in such conservative states as South Carolina.  When it gets down to crunch time what will be the decisive issues of the day?