ormer White House Press Secretary Scott McClellan writes in a surprisingly scathing memoir to be published next week that President Bush “veered terribly off course,” was not “open and forthright on Iraq,” and took a “permanent campaign approach” to governing at the expense of candor and competence. Among the most explosive revelations in the 341-page book, titled “What Happened: Inside the Bush White House and Washington’s Culture of Deception” (Public Affairs, $27.95): —McClellan charges that Bush relied on “propaganda” to sell the war. —He says the White House press corps went too easy on the administration. —He admits that some...