Don't forget that around 55% of American voters voted for Obama and they were tired of George W Bush. Bush's approval rating when he left office was only 23% - much lower than Jimmy Carter when he left office.

Negative ads or not does not matter at all. Remember demographics:

Most blacks will vote for Obama; most Hispanics will vote Obama; Democrats will vote Obama; most college educated women will vote Obama; at least half of Independents will vote Obama; most minorities will vote Obama; most young people will vote Obama.

Total it up - President Obama wins again.