He's playing the part. How many of these gaffes were word for word on his teleprompter?  He's not running for office, he's running from justice. Going for the senility defense. Also preparing for a no-disagreement transfer of party presumptive nomination to the person the Dems have hiding behind the curtain. Joe's deterioration makes the Dems clamor for and embrace his replacement candidate without question in the 11th hour.