A surge in government spending in the six months before the ObamaCare exchanges went live pushed federal spending to top government contractors over the $1 billion mark, a new study finds. According to the report released Thursday by Bloomberg Government analyst Peter Gosselin, federal spending ramped up in the months leading up to Oct. 1, with $352 million of the $1 billion in federal contracts to the top 10 ObamaCare contractors awarded during this time. “In a typical IT project, spending ramps up to a peak, then trails off during the final phase,” Gosselin wrote. The price tag usually associated...