Health care proposal

David Bernstein at the Volokh Conspiracy has a proposal:

Let the Democrats put forward three different health care reform proposals. Let the Republicans put forward two different proposals. Find five states to volunteer. Each state adopts one of the proposals. Wait several years. See if any of these proposals worked out well, and if so, which one seems best, and why. Learn from this trial and error, and then pass a national health bill, instead of trying an untested, one-size fits all solution for 20% of the American economy.

Of course, that would mean actually trying federalism...