President Barack Obama shakes hands with Elizabeth Warren, right, as Secretary of Treasury Timothy Geithner left,  looks on after announcing that Warren will head the Consumer Financial Protection Bureau, Friday, Sept. 17, 2010, during an event in the Rose Garden of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)

Photo by: Pablo Martinez Monsivais

President Barack Obama shakes hands with Elizabeth Warren, right, as Secretary of Treasury Timothy Geithner left, looks on after announcing that Warren will head the Consumer Financial Protection Bureau, Friday, Sept. 17, 2010, during an event in the Rose Garden of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)