“Lawyers on both sides of the lawsuits over President Obama’s healthcare law were caught off guard Monday when the Supreme Court said it would debate whether the law’s Medicaid expansion is constitutional. The high court was widely expected to take up the law’s individual mandate, and to take the case filed by 26 states and the National Federation of Independent Business. But the court’s decision to also hear the states’ Medicaid challenge came as a surprise to the healthcare law’s critics as well as its supporters.”