Isn’t this, what is more commonly called projection?
It’s the classic playground retort, “I know you are, but what am I?” Everyone knows that Biden has dementia. It’s obvious to anyone who’s ever known an elderly person with cognitive impairment. Someone (not Joe) came up with the bright idea of Joe trying to turn the tables and accuse Trump of being cognitively impaired. It’s laughable because, say what you want about Trump, his brain is firing on all cylinders. The Biden campaign can try tactics like this, but the truth will come out for all to see at the debates... if there are debates, that is.
Does anyone EVER see Biden after 8:00 PM?
No... because he’s sundowning with dementia
... and IRONY.