The U.S. uninsured rate sunk to 13.4 percent in the second quarter, the lowest level recorded since Gallup started tracking the question in 2008. The pollster said the drop followed a "surge" of people completing applications for health insurance through ObamaCare just before the deadline in mid-April. Since the beginning of the law's open enrollment period, the total uninsured rate has declined 3.7 percent as millions of people gained coverage. The news reveals that ObamaCare's exchanges were successful in reaching people who did not have health coverage.