Joe just “says stuff”. It used to be dishonest, but coherent. Now it’s so incoherent it’s harder to tell, but it’s still probably dishonest.
There was a Simpsons episode during the Obama years that had Michelle come and support Lisa.
Principal Skinner (who lives with his mother and is a total boob) speaks up with some nonsense. Michelle stops him and Superintendent Chalmers says “He is our Joe Biden”
Biden has never been taken seriously throughout his career, but we are supposed to take him seriously now as he suffers from debilitating dementia and incoherency.