Both Social Security and Medicare are largely "fixable" with the passage of one simple law...

If you report income of more than X, you either don't get any benefits, or benefits are substantially reduced. ("Reduction of benefits" could be as simple as a sliding scale of required deductibles before you get any Medicare benefits, higher deductibles for those reporting higher income.)

Get ready for "means testing" folks. It's inevitable that it will be a part of almost any legislation Congress comes up with. With the distribution of income in recent years showing a growing number of people in both the richer and poorer segments of the population, it will be a logical element of any legislation. We already have some means testing in Social Security--if you make more than a certain amount, you get less or none. The new test may just be a bit tighter. The precedent to apply the same approach to Medicare is well-established.

Want to call it "redistribution of wealth" when they apply the same approach to Medicare as has been used with Social Security? The Congress will simply point out that it's just an expansion of a well-established and fair limitation on benefits that has been used for years. But means testing is going to be a part of whatever legislation comes down the road, whether the Congress is controlled by the Democrats or the Republicans.