Steyn references this gem from Taranto: “The whole point of the metaphor is that if you can hear the whistle, you’re the dog.”
And a very rare breed at that. What frequency does a Mitch McConnell speech have to be ringing inside your head for even the most racially obsessed Caucasian NBC anchorman to hear the words "PGA tour" as "deep-rooted white insecurities about black male sexuality"? That's way beyond dog-whistling, and somewhere between barking mad and frothing rabid.
Great piece!