The disparity was even more marked among 500 uncommitted voters polled after watching the debate on CBS: Mr Obama won 53 per cent of the vote compared with 22 per cent who came out for Mr McCain. A total of 14 per cent of these unaligned voters said the debate had made up their mind to vote for Mr McCain, while 28 per cent said they would now be voting for Mr Obama and 58 per cent still weren't sure.