Minor problem.
I agree a majority of the mortgage mess rest with Bush although the roots go back to Carter.
But note: We are 2 years removed from the finacial melt down and none of the under lying causes of the mortgage mess have been fixed.
Fanny and Freddie are still buying high risk mortgages from banks even as they bleed taxpayer money.
Programs intended to allow refinancing of people underwater on their mortgages at better rates are being used to bring back the "finance your house to pay off bills and spend more" mentality that got us in this mess.
The fed rules that allowed and even encouraged banks to lend with little or no income verification have not been changed. Banks have tightened their standards, but the old rules are still there for them to legally return to the practices that got us into this mess.
That state of affairs is entirly on Obama.