Was Joe Biden being treated for cancer during his term in office?  One possible effect of chemotherapy for cancer is commonly called “chemo brain.”  The Mayo Clinic lists cognitive effects, physical complications, and risk factures for “chemo brain.” [1] 

“Symptoms of chemo brain linked to memory may include:

• Trouble recalling what you’ve said to others.
• Trouble recalling what you’ve seen, such as images or lists of words.
• Trouble recalling what’s happened recently, called short-term memory issues.

Symptoms of chemo brain linked to thinking may include:

• Trouble finding the right words.
• Trouble learning new skills.
• Trouble doing more than one thing at a time.
• Mental fog.
• Short attention span.
• Taking longer than usual to do routine tasks.

“Physical complications of chemotherapy include: 

• Low levels of healthy red blood cells or hemoglobin needed to carry oxygen to the body’s tissues, called anemia.
• Weakness and tiredness.”

“Factors that may increase the risk of chemo brain and memory changes in people with cancer include:

• Older age.”

There appears to be a degree of overlap in the symptoms of “chemo brain” and the “cognitive decline” attributed to President Biden from early in his term.[2]  It has been remarked that Joe Biden had not received the PSA test since 2014.  This struck some observers as odd.  On the one hand, doctors don’t recommend the PSA for men over 70.  On the other hand, Biden was a candidate for the presidency and then the President of the United States.[3]  Spokesmen for Biden have denied that he had been diagnosed with cancer before May 2025.[4]  That would be powerfully persuasive had not other spokespeople previously declared that Biden was mentally and physically fit to be President when he obviously was not.[5] 

Whatever the cause of Joe Biden’s cognitive problems, Americans are entitled to ask: who was running the show, and for how long, and in which areas of government?    

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[1] Chemo brain – Symptoms and causes – Mayo Clinic 

[2] For a catalogue of Biden’s public mis-steps, see: Age and health concerns about Joe Biden – Wikipedia For a recording of the full interview of Biden by Special Counsel Robert Hur, see: Marc Caputo, “Exclusive: Listen to the full Biden-Hur special counsel interview” Axios (May 17, 2025).  For a bunch of “now it can be told” stuff, see: Jake Tapper and Alex Thompson, Original Sin: President Biden’s Decline, Its Cover-Up, and His Disastrous Choice to Run Again (2025). 

[3] “C’mon man.”    

[4] See the very helpful article by Tyler Pager “Biden Did Not Get Prostate Diagnosis Before Last Week,” NYT, 20 May 2025. 

[5] Andrew Restuccia, Annie Linskey, Emily Glazer, Rebecca Ballhaus, Erich Schwartzel, “How Biden’s Inner Circle Worked to Keep Signs of Aging Under Wraps”, WSJ, 8 July 2024, elicited a lot of push-back from Democrats high and low.