@cnbc: Why have enhanced #ACA subsidies been a core issue of the government shutdown negotiations? "Essentially we're having a kind of proxy debate over the high and rising costs of health care and health insurance in the United States," says Vanderbilt University School of Medicine professor John Graves, who was under contract with the White House from 2008-2010 to conduct economic projections for the ACA. Read more here at the #linkinbio #CNBC