"UNITED STATES - JUNE 17: Sen. Bernie Sanders, I-Vt., left, asks a question as Chairman Mike Enzi, R-Wyo., looks on, during a Senate Budget Committee hearing in Dirksen Building titled ""Congressional Budget Office's Long Term Fiscal Outlook for Nation,"" June 17, 2015. CBO Director Keith Hall testified. (Photo By Tom Williams/CQ Roll Call)"
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