I pretty much agree with the last two paragraphs:
That’s not what happened: Obama ran on his unsatisfactory but not disastrous record as President; Romney ran on nothing more than vague promises that things would go better with him in office.
There were plenty of reasons to vote against the extension of Obama’s presidency, as I myself did. But it’s neither stupid nor crazy nor corrupt to prefer that to the assurances of an otherwise decent man who is apparently willing to say anything to be elected. Conservatives and Republicans who hope to return to power need to understand that.
he's saying it's understandable why people voted for O.