Who let the dogs out?

I had to laugh today when I read this from Karl Rove.

You don't want these candidates moving so Right in the Republican primary that it becomes impossible for them to win the general election, because it will become a self-defeating message in the primary.

People want to win. They don't want somebody who goes so far to the extremes of either party that they lack a chance to carry a victory off in November.

My first thought was...who let the dogs out in the first place?