Republican turnout is up and Democratic turnout is down in the 2016 primary contests so far. That has some Republicans giddy for the fall; here’s an example...

But Democrats shouldn’t worry. Republicans shouldn’t celebrate. As others have pointed out, voter turnout is an indication of the competitiveness of a primary contest, not of what will happen in the general election. The GOP presidential primary is more competitive than the Democratic race.

Indeed, history suggests that there is no relationship between primary turnout and the general election outcome. You can see this on the most basic level by looking at raw turnout in years in which both parties had competitive primaries. There have been six of those years in the modern era: 1976, 1980, 1988, 1992, 2000 and 2008....

So it shouldn’t be surprising that Republican turnout is higher than Democratic turnout this year. Hillary Clinton is a commanding front-runner on the Democratic side, while the front-runner on the Republican side has earned only one-third of the vote and less than half the delegates allocated so far. Voters are turning out for the more competitive contest.