Following the initial debate debacle, Democrats have come to the President's aid by blaming all kinds of things for his dismal debate performance:

• COVID
• The Russians
• Climate Change
• His advisers
• Kamala Harris
• Right wing insurrectionists
• Left wing insurrectionists
• Iran
• Syria
• Lebanon
• Libya
• The CIA
• The British
• Kanye West
• Swifties

The list goes on and on but nowhere does it mention getting old and losing your mind, which, as The New Yorker points out in The Reckoning of Joe Biden, was well articulated by Mark Twain many years ago:

It is sad to go to pieces like this, but we all have to do it.