Six months ago, the Obama White House was pretty excited to be able to tout GDP growth of 4.1 percent in the third quarter of 2013. That was followed by 2.6 percent in the fourth quarter, which is nothing to throw a party about but at least it's better than the annualized growth of less than 2 percent we've seen throughout Obama's bleak presidency. But you can't build an economic legacy on the occasional strong quarter. What this nation needs is sustained economic growth, preferably of 4 percent or better.