Bruce Bartlett says it was a failure to focus. Paul Krugman says it was a failure of nerve. Nancy Pelosi says it was the economy’s failure. Barack Obama says it was his own failure — to explain that he was, in fact, focused on the economy. As Krugman rightly stipulates, Monday-morning quarterbacks should say exactly what different play they would have called. Paul’s answer is that the stimulus package should have been bigger. No disagreement: I was one voice calling for a much larger program back when. Yet this answer is not sufficient. The original sin of Obama’s presidency was to assign economic policy to a closed circle of bank-friendly economists and Bush carryovers. Larry Summers. Timothy Geithner. Ben Bernanke. These men had no personal commitment to the goal of an early recovery, no stake in the Democratic Party, no interest in the larger success of Barack Obama. Their primary goal, instead, was and remains to protect their own past decisions and their own professional futures.