This assessment by Paul Krugman sounds right to me:
Let me conclude with a political note. The main reason for reform is to serve the nation. If we don't get major financial reform now, we're laying the foundations for the next crisis. But there are also political reasons to act.
For there's a populist rage building in this country, and President Obama's kid-gloves treatment of the bankers has put Democrats on the wrong side of this rage. If Congressional Democrats don't take a tough line with the banks in the months ahead, they will pay a big price in November.