(CNN) — Scott McClellan, the former White House press secretary who sharply criticized President Bush in his memoir last spring, told CNN Thursday he's voting for Barack Obama. "From the very beginning I have said I am going to support the candidate that has the best chance for changing the way Washington works and getting things done and I will be voting for Barack Obama and clapping," McClellan told new CNN Host D.L. Hughley McClellan, a onetime Bush loyalist whose scathing critique of the president sent shock waves across Washington last spring, has long hinted he was leaning toward the...