Greg Ip watches the Medicare fight go around and around:
Both parties have, somewhere inside them, a serious proposal to reform Medicare. If they thought they could be elected by offering such a plan, they would do so. But any serious attempt to reform Medicare is going to be unpopular because it will cost the elderly something, and the elderly are on the way to becoming 30% of the voting population. Thus, the opposing party is inevitably going to use such a proposal to kill the other at the next election without advancing an alternative. And since both parties know this, the only Medicare plans they offer voters will be lemons.
The Dish 