
When a President’s Health Raises Constitutional Questions
What happens if the President of the United States becomes too ill to carry out their duties—but doesn’t step aside?
That’s not just a political hypothetical. With recent news that President Trump may be battling chronic venous insufficiency, a circulatory condition that affects the veins in the legs, the public is asking tough questions: Can a president legally remain in power while dealing with serious health issues? And what does the Constitution actually say about this?
Let’s break it down.
The 25th Amendment: A Safeguard for Presidential Health
If a president becomes too sick to serve, the 25th Amendment offers a constitutional pathway. Ratified in 1967 after the JFK assassination, it answers the once-vague question of presidential succession.
According to the National Constitution Center, the amendment has four sections. Two are particularly relevant here:
Section 3: A president can voluntarily transfer power to the Vice President by submitting a written declaration.
Section 4: If the president is unwilling or unable to declare their incapacity, the Vice President and a majority of the Cabinet can initiate the transfer.
These sections have been used sparingly—such as during Reagan’s surgery and Bush’s colonoscopies—but never invoked to remove a president unwilling to step aside.
Explore how this process has been handled historically via the Reagan Library and Ford Library.
What Exactly Is Chronic Venous Insufficiency?

Chronic Venous Insufficiency (CVI) is a progressive vascular condition where the veins in the legs fail to return blood to the heart effectively. When the valves inside leg veins weaken or become damaged, blood flows backward and begins to pool in the lower extremities, leading to swelling, pain, and skin complications.
While often overlooked as a minor circulatory issue, CVI is anything but trivial. According to the National Center for Biotechnology Information, the condition affects up to 40% of the adult population, especially older adults, women, and those with sedentary lifestyles.
Causes and Risk Factors
CVI typically develops gradually and is influenced by:
Aging
Obesity
Sedentary lifestyle
Pregnancy
Smoking
Family history of venous disease
Previous deep vein thrombosis (DVT)
These factors contribute to venous hypertension, which strains the vessel walls and leads to chronic symptoms.
Common Symptoms
Persistent leg swelling (edema)
Heaviness or aching in the legs, especially after prolonged standing
Varicose veins
Skin changes, such as discoloration, thickening, or ulcers
Itching and cramping
The symptoms worsen over time and, if untreated, can lead to serious venous ulcers and skin infections.
How It’s Diagnosed
Diagnosis typically involves:
- Duplex ultrasound, which evaluates blood flow and valve function
- Venography, in rare cases, to visualize vein structure
- Photoplethysmography or air plethysmography for measuring venous function
Read more at UC Davis Health.
Treatments and Long-Term Outlook
Management strategies include:
Compression therapy (stockings)
Lifestyle changes: weight loss, leg elevation, walking
Medications to improve circulation
Minimally invasive procedures: sclerotherapy, laser ablation
Surgery in severe cases
While not life-threatening, CVI can impact physical stamina, cognitive clarity (due to chronic pain), and the ability to stand for prolonged periods, raising concerns about the functional demands of the presidency.
Donald Trump has been diagnosed with chronic venous insufficiency. pic.twitter.com/QMd1WNcSf9
— Pop Crave (@PopCrave) July 17, 2025
President Trump’s reported CVI diagnosis in 2025 has reignited debate over presidential fitness and the mechanisms in place to preserve government continuity. If his condition worsens, Sections 3 or 4 of the 25th Amendment may become more than academic.
Although Trump has not indicated any incapacity, the constitutional framework is ready, should future circumstances demand its use.
References:
National Center for Biotechnology Information. Chronic Venous Insufficiency
PMC – National Library of Medicine. Understanding Chronic Venous Disorders
UC Davis Health. Venous Exam Overview
History.com. When Presidents Get Sick: The 25th Amendment Explained
Constitution Center. 25th Amendment
Reagan Library. 25th Amendment and Presidential Succession
Ford Library Museum. Establishment and First Uses of the 25th Amendment
Constitution Annotated (Congress.gov). 25th Amendment Analysis
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