During discussions of the 1968 Democratic National Convention protests, the men were arguing about freedom of speech in regards to American protesters displaying a Viet Cong flag when Vidal told Buckley to "shut up a minute" and, in response to Buckley's reference to "pro-Nazi" protesters, went on to say "As far as I'm concerned, the only sort of pro-crypto-Nazi I can think of is yourself."
The visibly livid Buckley replied, "Now listen, you queer. Stop calling me a crypto-Nazi, or I'll sock you in the goddamn face and you'll stay plastered." After an interruption by anchor and facilitator Howard K. Smith, the men continued to discuss the topic in a less hostile manner.