http://mungowitzend.blogspot.com/2012/0 ... tions.html

So lets just look at the relatively recent raw data and see what we can see. This graph is from my 2008 Public Choice paper. It shows that from 1961-2004, there is a pronounced difference in economic performance over the second half of the election cycle between cycles where the incumbent party wins and when it loses.
I used Fred to update the results through 2008, and average growth over the last half of the election cycle when the incumbent party wins is 4.6%. When the incumbent party loses, it's 2.2%. That difference is significant at the 0.001 level.
For the relevant period of the Obama cycle for which Fred lists data (2011 q1 - 2012q2, 6 quarters), the average growth rate is 1.9%
In recent times, the incumbent party will, on average, lose with such a low growth rate in the second half of the cycle.
Why do I care about this? Well, I want to question the idea that the economy is helping (or at least not hurting)Obama. I want to question the assertion that campaigns don't matter because the economy is everything.
BHO is going to win in November DESPITE the economy, largely because Romney is a terrible candidate who is running an undisciplined, juvenile, brain-damaged campaign.
And that matters.