For the last year, the left has engaged in an organized campaign to drive Rush Limbaugh off the air. Knowing they cannot go after Rush Limbaugh directly, the left has launched repeated boycotts against any advertisers who dare advertise while Rush Limbaugh is on. Consequently, some advertisers decided to stop advertising at all on political talk radio, depriving the genre as a whole of resources. And it still hasn’t hurt Rush Limbaugh. Mitch McConnell has decided to embrace the same strategy in his war against the Senate Conservatives Fund. He can’t attack the Jim DeMint created Senate Conservatives Fund outright,...