DiA describes what the US should do now that Iran has certified the election results:
In the end, though, the regime's fate may depend on the prices of oil and gas, which account for over 80% of government revenue. A precipitous drop in either would be disastrous, though the status quo is bad enough. One positive outcome of this election debacle is that Ayatollah Ali Khamenei has now tied himself to Mr Ahmadinejad's economic mismanagement. Every uptick in unemployment is a knock against the current power structure. Every bit of inflation is a reminder of the system's flaws. These are things Iranians deal with everyday, and they are more personal and affecting than the country's relations with America or Israel. So the American administration should quietly do what it can to foment the economic undoing of the regime, but otherwise get out of the way. Because in many ways, the regime is already digging its own grave.