Senior moments? The guy is cruel and demented. Quit slurring seniors. He could not find his way out of the chamber.
I was just about to comment similarly.
What we saw was the real Joe Biden. Angry, cruel, when he did acknowledge Lakan Riley it was the equivalent of looking at his watch as the coffins of soldiers whose deaths he was responsible passed by.
By extension, many in his party are the exact same--they just make efforts to hide it.