532,000 people voted in the South Carolina Democratic Party presidential primary in 2008. In this year's primary, completed yesterday, only 370,000 did. In the meantime, the state's pool of eligible voters increased by about 8 percent.
Thus, turnout in this year's Democratic primary in the Palmetto State, down by just over 30 percent in absolute terms, was down by about 35 percent on a population-adjusted basis. Beyond grudging, routine and non-specific recognitions of the decline, that's barely news. Moreover, the fact that this result occurred in a state no Democratic Party candidate has won in 40 years and in a region Republicans have mostly swept during that time certainly can't be allowed to distract from Hillary Clinton's "sweeping victory."