Former President Bill Clinton’s speech poked at the Republican presidential ticket’s biggest vulnerability: Romney-Ryan’s commitment to sharp reductions in federal support for Medicaid, which I believe are very unlikely to be implemented in practice, though I hope block grants of some kind are pursued. But I didn’t see much follow-through. Instead, the Democrats seem to be focused on the auto bailout as their most politically unproblematic achievement. While Clinton seemed strangely reluctant to attack Romney-Ryan’s Medicare reform concept, President Obama pledged to oppose the “voucherization” of Medicare, which presumably means he will oppose competitive bidding. That is a major disappointment.