I blame ACORN:

Blacks voted at a higher rate this year than other minority groups and for the first time in history may also have voted at a higher rate than whites, according to a Pew Research Center analysis of census data, election day exit poll data and vote totals from selected cities and counties.

Unlike other minority groups whose increasing electoral muscle has been driven mainly by population growth, blacks’ rising share of the vote in the past four presidential elections has been the result of rising turnout rates.

See, this is exactly what conservative columnist George Will warned about when he recently argued that high voter turnout rates are bad, because Hitler! This election was just like 1930s Germany, only peaceful, Democratic, and without all the Jew killing.

The good news for Republicans is that Hispanic and Asian turnout still lags far behind the general population. The bad news for Republicans is that this leaves these increasingly Democratic groups with plenty of room to grow their electoral influence beyond mere population growth alone.