File photo of U.S. President George W. Bush (R) greets World Bank President Robert Zoellick upon arrival at the North Portico of the White House

 
File photo of U.S. President George W. Bush (R) greets World Bank President Robert Zoellick upon arrival at the North Portico of the White House
U.S. President George W. Bush (R) greets World Bank President Robert Zoellick upon arrival at the North Portico of the White House in this November 14, 2008 file photo. Economists, investors and veterans of past administrations are appraising potential successors to Treasury Secretary Timothy Geithner. Zoellick, whose term as World Bank president expires in June, might prefer running U.S. diplomacy to overseeing the nation's troubled finances. REUTERS/Jim Young/Files (UNITED STATES - Tags: BUSINESS POLITICS)