I found a very sensitive issue among Lefties. I suggest that candidate Romney use this issue at some point later in the campaign. It really hurts Obama's core supporters.
The issue is the fact that Obama has no leadership skills as evident from the fact that he blames everyone for every failure.
President Obama blames the economic situation on George W. Bush, when he is talking about how bad the economy is.
When he has trouble with Congress failing to pay attention to his proposals he blames it on Rush Limbaugh and Fox news.
When the economy is not responding to Obama stimulus efforts, he blames it on Wall Street, hedge fund managers, "millionaires and billionaires".
Most Lefties know that this is Obama's behavior and they know that a leader would never do something like this.
It is a weakness that cuts directly into his support. Lefties know in their heart that Obama is not a leader.
P.S. Yesterday the Republican National Committee announced a new tv campaign based on Obama as the blamer.