Donald Trump said he would not defend NATO allies he considers "delinquent" John Avlon: Trump often seems unable to distinguish between self-aggrandizing fantasies and things that have actually happened. He says we should be focusing on how the mental capacity of the candidates can affect their decision making.

Avlon says Biden is a man who does not like to accept reality when it is not how he wants it to be. He says Biden has made mistakes, but they were justifiable in retrospect.