White and grey.
That's the clear pattern for turnout in the Republican presidential race over its first two months.
After Super Tuesday, exit polls have now been now been conducted in 14 states from all regions of the country. In all 14 of those states, white voters, and voters over 50, both comprised a significantly larger share of the electorate in this year's GOP primary than they did in the 2008 general election. In many cases, the gap on each front has been enormous.
These patterns underscore the extent to which the modern GOP coalition revolves around white voters-and increasingly, as the graying baby boom moves right, older white voters.