Obama was defeated by the Bradley effect.This is easily provable by the fact that Exit Polls showed Obama winning by 5. It is not possible for people to change their vote after they have already voted.People told pollsters they had voted for Obama when they did not.This must be a concern for Democrats going forward.Remember this was a Democratic primary.It was not a general election.Democrats who run with Obama will not even be sure of getting the Democratic vote. Roosevelt and Kennedy were segregationists who did very little in regards to intergration. Since the passage of the Civil rights bill in 1965 Democrats have never gotten over 50% of the Presidential vote.Obama cheated to win Iowa.He had thousands bused in from Chicago to take part in those events.In my opinion neither Clinton or Obama can beat McCain.