No surprises here.

In the end, we have to face the fact that political intolerance in America -- ugly and unfortunate on either side of the political aisle -- is to be found more on the left than it is on the right. This may not square with the moral vanity of progressive political stereotypes, but it's true.

I wonder if this study depressed Arthur Brooks, the author, as much as his study that showed conservatives were more generous with their time, money, and blood than liberals.