** FILE ** President Bush, right, looks on as Jim Nicholson, his new choice to become Veterans Affairs Secretary, speaks in the Roosevelt Room of the White House in Washington in this Dec. 9, 2004 file photo. Nicholson, who was forced to defend the Bush administration's handling of people injured in battle after revelations of shoddy health care at Walter Reed Army Medical Center, announced Tuesday, July 17, 2007, that he is resigning. (AP Photo/Lawrence Jackson, File)