The whole Donald-Bernie mano-a-mano thing was daft from the start. Finally late on Friday, Donald Trump admitted it. There would be no debate between him and Mr Sanders in California. No West Coast wrestle, no battle on San Francisco Bay. Sorry Bernie.
He dropped his can of cold water at a carefully chosen moment, just as all of America was packing up its picnic bags for the long Memorial Day weekend and paying scant attention to anything else, not even to him.