In light of President Obama's exhortation to hike taxes on those making more than $250,000 a year earlier today, here's a well-timed piece of evidence demonstrating what happens when you decide you'd rather engage in populist persecution and punish the wealthy for their economic contributions rather than make tough budget-cutting decisions. A new report indicates that the state of Maryland is bleeding residents and tax revenue — an emigration likely due to the wildly blue state's recent tax hikes. The study, by the anti-tax group Change Maryland, says that a net 31,000 residents left the state between 2007 and 2010,...