It's a point that might bolster the arguments of those Rove probably hopes won't win in 2016.
Graphing turnout data by age and race.
In part, there's a split along racial lines, as well.
But the people who bothered to vote voted to change that.
Hispanic registration rates create an uneven national map.
There's a steady increase in turnout as voters age.
A look at voter data from California.
The state of turnout efforts in low-turnout elections.
An interview with Columbia University's Donald P. Green.