The past few days have seen a lot of mud slinging between Barack Obama and Hillary Clinton on the subject of health care mandates. The short version of the argument is that Obama's plan has no mandate at all, meaning it has no mechanism through which to achieve universal coverage, and Hillary Clinton's plan has an undefined mandate, meaning we don't know how it will achieve universal coverage. Clinton's position is better, but it's still a bit vague. Later today, John Edwards will announce the specifics of how his mandate works. And they're quite good. Whenever you come into contact with the health care system, or whenever you pay your taxes, you will be asked to provide proof of insurance, presumably a policy number or some similar identifier. If you cannot, you will automatically be enrolled in either a public plan that you qualify for (like Medicaid or S-CHIP) or the cheapest plan offered by his Health Insurance Market. Bills will then get sent out, and if they're not paid, will be collected just like the government collects on student loan debts, or taxes, or anything else, using tools up to and including collection agencies and wage garnishment. (It's notable, here, that Edwards doesn't shy away from saying what his stick will be.) In this way, Edwards' plan is much less an individual mandate and much closer to a government mandate. The burden is less on the individual to seek new insurance and more on the government to simply enroll them in it. From there, they can opt in to a different insurer if they so choose, or simply stay with their default plan. It's a smart and efficient way to move towards universality, and, for now, it puts Edwards ahead of both Obama and Clinton on the substance of the policy, and the speed with which he presented it to the public. --Ezra Klein