The Irony of Hypocrisy

Steve Benson, the Republic's cartoonist, recently dressed up presidential hopeful Ted Cruz as Senator Joe McCarthy, the 1950s political operative notorious for recklessly accusing people of being communists.  I wonder if "progressives" like Mr. Benson, who accuse people of being a Hitler or McCarthy, realize the irony of their accusations.  Or is a better word for it hypocrisy.