"Actions speak louder than words", plus Biden can logically let others speak for him. However, he is supposed to have a press conference soon, the last time I heard.
And you tell that the Pubs are getting desperate, thus trying to find anything to pin on him, not only on this but also on the vitally important issues of Dr. Seuss and Mr. Potatohead. Yep, these rank right up with the attempted negation of the election and the attempted take-over of the Capitol by Trump's minions. And the attempt by Republicans in 44 states to basically enact Jim Crow-type laws is no where nears as important as Dr. Seuss and Mr. Potatohead. [/sarcasm]