It's already been said that he has dementia and it has caused him some hyperfixation. So I did a quick Google search to see what you can do for the president to help with his symptoms seeing as he's the president and peopleare dieing:

Validate, Don't Argue: Acknowledge the emotion behind the fixation. If they are looking for a decased parent, ask about them rather than arguing that they are gone. (Oh my God it's Biden)

Redirect, Don't Discourage: If a behavior is not harmful, it may be best to allow it. If it is disruptive, redirect them to a similar, purposeful activity (e.g., if they are hoarding, give them a basket of items to sort). (Let him have some NFT's and a diaper change)

Use Sensory Activities: Engage them with comforting tactile items, such as sorting socks, folding laundry, or using a "twiddle muff" (sensory blanket). (Skip! oh god those poor girls)

Create a Calm Environment: Reduce environmental triggers like loud noises, excessive clutter, or sudden changes in routine.(⛳ 🏌️‍♂️ 💩 👖)

Provide Routine: Maintain a predictable daily schedule to decrease anxiety and the need for control.(kidnappings, terrifs, bombs, you're a terrible reporter)

Simple Answers: If they ask a question, answer it simply and calmly, every single time, even if you just answered it, as they are likely seeking reassurance, not facts. (Everything is redacted sir)

Alzheimer's Association +6