Could his race cost Obama the election?

A new polls conducted by Stanford University suggests that “the percentage of voters who may turn away from Obama because of his race could easily be larger than the final difference between the candidates in 2004 — about two and one-half percentage points.” It also says that one-third of white Democrats have some sort of negative view towards blacks.

Assuming this election is going to be close, could this hurt Obama and cost him the election? How stupid is that?!!