Congressional Republicans are insisting that big cuts to Medicare and Medicaid be on the table in the negotiations over the so-called fiscal cliff and deficit reduction. That stance is largely a political move against two programs, which have been critical to the public welfare for the past half-century. Postelection polls show that large majorities of voters for both President Obama and Mitt Romney opposed making large Medicare cuts as a way to reduce the budget deficit. And, the fact is, the Obama administration has already pledged to extract more than $1 trillion in savings over the next decade from these programs. There is not much more that can be cut without hurting the most vulnerable Americans.