Former Gov. Mitt Romney is down-sizing his stake in Massachusetts. He sold his Belmont mansion and bought a townhouse in a condo development. And now he more often resides in his $12 million mansion in La Jolla, Calif., or his $10 million house on Lake Winnipesaukee in New Hampshire. Ever since Romney won just 51 percent in the Massachusetts GOP presidential primary, he has seemed less enamored with this state. And as a GOP presidential candidate for 2012, he apparently wants to distance himself from so-called RomneyCare, the Massachusetts health insurance program that became a model for so-called ObamaCare, the...