The headlines should be, but won't be:
"Trump embarrasses himself and the US in incoherent, rambling, shameful speech at the UN"

@petergleick Neh. "embarrassment is considered a "self-conscious emotion", and it can have a profoundly negative impact on a person's thoughts or behavior. Usually, some perception of loss of honor or dignity (or other high-value ideals) is involved" says Wikipedia.

Does not apply. The witnesses in the room could be embarrassed to be there though!