What large voting bloc that didn't vote for zero the first time around have been convinced that they will vote for him in November because he is a nice guy? NONE!
What large voting bloc that did vote for the pretender because he was black and a nice guy will NOT vote for him in November? LOTS!
He is counting on the ignorant to reelect him, but many of those who voted for him in 2008, woke up and have seen the damage he has done and will not vote for him, and those are not the ignorant.