A new report finds that the Republican bill to repeal and replace the Affordable Care Act would reduce the federal deficit by $337 billion over a decade but would also leave 24 million more Americans uninsured. That legislation has already drawn opposition from major interest groups, health policy experts, and even some GOP lawmakers. The bill’s defenders are touting the lower premiums and deficits the CBO estimated, but they are also facing questions about what to do about tens of millions of uninsured Americans.