Bush endorses McCain for president at White House

U.S. President George W. Bush (L) welcomes Republican presumptive presidential nominee Sen. John McCain (R-AZ) and his wife, Cindy, on the North Portico of the White House on March 5, 2008. Bush endorsed McCain's candidacy and pledged to support McCain during the campaign. (UPI Photo/Chip Somodevilla/POOL)