I specifically meant Biden as a demented. His cognitive state is bad and it is especially obvious if one compares lucidness of his speeches with the ones, say,

I specifically meant Biden as a demented. His cognitive state is bad and it is especially obvious if one compares lucidness of his speeches with the ones, say, of 3 years older Nancy Pelosi or 1 year older Sanders. To choose a president from two bad choices is an illustration of the condition US politics is in and is a disgrace.