WASHINGTON — Sen. Bernie Sanders’ “Medicare for all” plan would boost government health spending by $32.6 trillion over 10 years, says a study released Monday. The latest plan from the Vermont independent would deliver savings on administration and drug costs, but increased demand for care would drive up spending, according to the analysis by the Mercatus Center at George Mason University in Virginia.

Doubling federal individual and corporate income tax would not cover the full cost, the study said.

Sanders’ plan builds on Medicare, the insurance program for seniors. All U.S. residents would be covered with no copays and deductibles for medical services. “Enacting something like ‘Medicare for all’ would be a transformative change in the size of the federal government,” said study author Charles Blahous, who was a senior economic adviser to former President George W. Bush and a public trustee of Social Security and Medicare during the Obama administration.

Sanders took aim at the Mercatus Center, which receives funding from the conservative Koch brothers. Koch Industries CEO Charles Koch is on the center’s board.

Sanders’ office has not done a cost analysis, a spokesman said. The Mercatus findings are similar to those of independent studies of Sanders’ 2016 plan, which found increases in federal spending over 10 years that ranged from $24.7 trillion to $34.7 trillion.