 Everyone around Joe Biden knew that Joe Biden was senile. All the staffers and the fundraisers knew that Joe Biden was senile. Everyone who has seen a clip of Joe Biden at any point in the last four years knew that Joe Biden was senile. The DNC knew Joe Biden was senile. That's why they tried to cover for his obvious cognitive decline by pretending that his childhood stutter came back 50 years after he got into politics, 75 years after he had it. Everyone knew it.