I find it quite significant when GOP stalwarts like General Powell and Mr. McClellan are publicly endorsing Obama. I think Obama has a good chance. 
quote — 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 Illinois senator.
“It’s a message that is very similar to the one that Gov. Bush ran on in 2000,” McClellan said in May about Obama’s campaign.[/quote]