Supporters of the Obama health law are incorrectly reading the Supreme Court’s ruling as a victory. First, the ruling severely limited the Obama health law’s Medicaid expansion, effectively giving states the green light to refuse to expand their Medicaid programs. Coupled with the fact that the statute already enables states to block the other half-trillion dollars of new entitlement spending, the law is in a very precarious position. Second, the Court ruled 5-4 that the individual mandate is not a legitimate use of the Commerce Power. That too is a defeat for the government, even if it is of no...