Harold Pollack of the University of Chicago has an incisive article in today's Washington Post which argues that Trump's scuffle with the Kahns will likely lead to the same result as McCarthy's scuffle with Joseph Welch, a Boston attorney. McCarthy's question, "Have you no decency, sir?" sank one demagogue. Will Khan's do the same? The following video covers McCarthy's attempt to label a junior lawyer in Welch's office as a Communist.