Is he taking advice from the neocons, who apparently believe that we should not fear a nuclear holocaust because that's exactly what Vladimir Putin wants us to do? (I presume Putin also wants us to believe that the earth is round. Should we give that up too?)

How else to explain Biden's astounding statements in recent days, particularly while meeting with NATO representatives in Brussels and with U.S. troops in Poland? That's right: 9,000 U.S. troops are now in southeast Poland, not far from the Ukrainian border. Poland of course is a member of NATO, which means that if Poland clashes with Russia, the U.S. government has treaty obligations to its ally. To be clear, here's Article 5, which embodies the principle that NATO describes as being "at the very heart" of the treaty":

The Parties agree that an armed attack against one or more of them in Europe or North America shall be considered an attack against them all and consequently they agree that, if such an armed attack occurs, each of them, in exercise of the right of individual or collective self-defence recognized by Article 51 of the Charter of the United Nations, will assist the Party or Parties so attacked by taking forthwith, individually and in concert with the other Parties, such action as it deems necessary, including the use of armed force, to restore and maintain the security of the North Atlantic area. [Emphasis added to indicate ambiguity in the provision that isn't often acknowledged.]

Are Biden's off-the-cuff-and-wall remarks signs of dementia? Or are they just the Bidenesque "Kinsley gaffes" we've become accustomed to? (A Kinsley gaffe occurs when someone important speaks his mind when he or his handlers know he shouldn't.)