In 2007 and 2008, as the residential housing market experienced a sharp decline under the weight of widespread defaults by subprime borrowers, Fannie Mae suffered billions of dollars in losses. On September 6, 2008, Fannie Mae entered conservatorships overseen by the Federal Housing Finance Agency, and the [[U.S. Treasury Department]] began to make substantial purchases of Fannie Mae's senior preferred stock. As of December 31, 2011, Treasury had committed over $183 billion to support Fannie Mae and Freddie Mac. | In 2007 and 2008, as the residential housing market experienced a sharp decline under the weight of widespread defaults by subprime borrowers, Fannie Mae suffered billions of dollars in losses. On September 6, 2008, Fannie Mae entered conservatorships overseen by the Federal Housing Finance Agency, and the [[U.S. Treasury Department]] began to make substantial purchases of Fannie Mae's senior preferred stock. As of December 31, 2011, Treasury had committed over $183 billion to support Fannie Mae and Freddie Mac. |