Now that two of the top three candidates for the Republican nomination have pulled out of the race, the big winner is the one candidate left standing: Mitt Romney. The polling before Huckabee and Trump pulled out was — in my survey — Romney-22, Huckabee-20, Trump-15, Gingrich-11, Palin-9, Bachmann-6, Pawlenty-3, and Daniels-2. Now, Romney will inherit a large proportion of the votes left on the table by Huckabee’s and Trump’s withdrawal. My polling suggests that, based on the expressed second choices of the Huckabee and Trump voters, Romney will get 30% of Huckabee’s voters and 40% of Trump’s. These additions...