Tennessee GOP Sens. Bob Corker and Lamar Alexander are pushing legislation based heavily on the original Simpson-Bowles deficit reduction proposal that would glean an estimated $689 billion in health care savings over 10 years, the largest portion -- $290 billion -- of which would come from reforming Medicare Advantage. The Fiscal Sustainability Act (S.11) -- which would also reform Medicaid, prohibit Medigap coverage after 2017 and further means -test Medicare, is nearly identical to Corker's “Dollar for Dollar” bill introduced...