On Tuesday, according to exit polls, whites accounted for 72 percent. Obama received 39 percent of that white vote, compared with 43 percent in 2008. That compares with the 42 percent Al Gore captured in 2000 and the 41 percent John F. Kerry took in 2004. In fact, it is the lowest for any Democrat running in a two-way contest since 1984, when Walter Mondale received 35 percent of the white vote.

Hmmm…