Jeff Madrick and Frank Partnoy Manuel Balce Ceneta/AP Photo The Fannie Mae building, Washington D.C., 2007 A debate has erupted anew in Washington over whether Fannie Mae and Freddie Mac caused the credit crisis of 2007 and 2008. Their critics claim that these two Government Sponsored Enterprises (GSEs) deserve a lot of the blame because they encouraged mortgage lending to low-to-middle-income ...