Given that nearly every decision and initiative undertaken by the Obama administration has or will impoverish the country, it's getting harder and harder to argue against those who claim that the president is intentionally ruining the economy. Off the top of my head I am unable to think of a single one of his policies that will have a positive economic impact. There must be at least one that does this, even if inadvertently.
At any rate, although most of the president's policies have severely negative effects that have prolonged and worsened the recession, some are even worse than that because they would drive our economy into the ground for years to come. The most recent of these is the president's idea to centrally plan every aspect of energy use.