One of the potential contenders for the Republican nomination for President, Governor Scott Walker of Wisconsin, was surprise-asked the evolution question. The liberal media recurrently seeks to entertain itself with such “gotcha” questions. Their guys can sound as though they are confused about the number of states, or refer to the “inter-continental railroad,” and they’ll dismiss these things as foibles. But, they have a different rule for Republicans. Back in the days of Warren Harding, his supposed lack of intelligence was due, the progressives intimated, to his mixed-race heritage. Nowadays, the progressives consider the white race to be suspect.