I don't know if Newt can beat Obama... I have not even made a choice of what REP candidate I support yer (but I better get my scorecard done soon)... but I do believe that Newt would be slightly better than Obama, even in a worst case scenario...
As for an unfavorable rating... in the long run, I don't see where his unfavorable rating would end up any worse than Obama and they would probably be on a level playing field on that aspect of the race.... many simply will never vote for Newt, just as many of us will never vote for Obama.... I guess it comes to how many would abstain, how many would vote for the other just out of spite, how many would vote 3rd party, how many would bite the bullet and vote for what they believe to be the lesser of two evils, and how many would vote just to try and change the crap we have now... only time will tell, I guess