Yes, it was a private fund raiser so not all affair videoed.
Was it his comment in the George Stephanoupoulous (sp? lol) interview, saying Trump was about to be challenged in a new way? See https://www.thegatewaypundit.com/2024/07/watch-biden-issued-veiled-threat-one-week-before/
Or was there another instance where he referred specifically to Trump going to have a “bad week”?
Seems like Paul Sperry understood Biden’s language in that interview...