The White House Wednesday said it was puzzled by a former spokesman's memoir in which he accuses the Bush administration of being mired in propaganda and political spin and at times playing loose with the truth. Former White House spokesman Scott McClellan blasts President Bush and advisers in a new book. In excerpts from a 341-page book to be released Monday, Scott McClellan writes on the war in Iraq that Bush and his advisers confused the propaganda campaign with the high level of candor and honesty so fundamentally needed to build and then sustain public support during a time of war. -LSB- I -RSB- n this regard, he was terribly ill-served by his top advisers, especially those involved directly in national security, McClellan wrote. White House spokeswoman Dana Perino called McClellan's description of his time at the White House sad. Read excerpts from the book Scott, we now know, is disgruntled about his experience at the White House, Perino said. For those of us who fully supported him, before, during and after he was press secretary, we are puzzled. It is sad. This is not the Scott we knew. McClellan's former White House colleagues had harsher reactions to McClellan's book. Frances Townsend, former Homeland Security adviser to Bush, said advisers to the president should speak up when they have policy concerns. Scott never did that on any of these issues as best I