Obama has a serious white voter problem...

Barack Obama may have 57% of the minority vote, but Romney is beating Obama among white voters by 20%.

Via Rasmussen:

The Rasmussen Reports daily Presidential Tracking Poll for Tuesday shows Mitt Romney attracting 47% of the vote, while President Obama earns support from 44%. Five percent (5%) prefer some other candidate, and four percent (4%) are undecided.

Romney has a 20-point advantage among white voters.  Obama is supported by 91% of black voters and 57% of other minority voters.