Maryland Gov. Martin O'Malley may be more skilled at implementing President Obama’s agenda than the White House itself. The Democratic governor is bringing the same big-spending, high-tax and class-warfare policies to the Free State. It’s going to cost residents a bundle. Tough economic times have forced ordinary Americans to cut back in order to get by. Not so Mr. O’Malley, who spends $35.9 billion in the budget released last month. That’s up from $34.2 billion last year and $32 billion the year before that. As Maryland Business for Responsive Government points out, the general fund budget fattened 11.4 percent last...