The majority of media attention in the 2012 Republican nomination contest is (rightly so) on the current race among Mitt Romney, Rick Santorum, Newt Gingrich, and Ron Paul, but it's also instructive to compare Romney to another candidate: himself, circa 2008. In the battle of "Romney vs. Romney," who has performed better? At present, this year’s Romney is struggling to match the vote shares his counterpart posted four years ago; Romney 2012 has bested Romney 2008 in just three of nine contests thus far—New Hampshire, South Carolina, and Florida. See results below:

States in which Romney 2012 has outperformed Romney 2008:  3
States in which Romney 2008 has outperformed Romney 2012:  6