Three weeks out from Election Day, the Never Trump argument has been neatly summed up by Bill Maher. Not only is Donald Trump coarse and boorish, anyone who supports the man is as revolting as he is.

On his show last month, Mr. Maher put it this way to Trump campaign manager Kellyanne Conway: “You are enabling pure evil.” The HBO comedian went on to amuse himself by adding that “Hillary was right when she called a lot of his supporters deplorable.”

Mr....