U.S. Withdrawal from the World Health Organization: Status and Potential Reversal

President Donald Trump stated on January 25, 2025, that he may consider the United States rejoining the World Health Organization (WHO), just days after he ordered the country’s withdrawal from the global health agency. The U.S. is scheduled to officially exit the organization on January 22, 2026, a move announced by the President on January 20, 2025, following his inauguration for a second term.
Why did the U.S. announce its withdrawal?
President Trump’s decision to exit the WHO stems from his criticism of the agency’s management regarding the COVID-19 pandemic and other international health crises. During a rally in Las Vegas, he expressed significant dissatisfaction with the financial structure of the organization.
The United States currently serves as the largest financier of the WHO, contributing approximately 18% of its total funding. President Trump specifically highlighted his frustration that the U.S. provides more funding to the organization than China, despite China having a larger population. According to the most recent biennal budget for 2024–2025, the WHO operates on a total budget of $6.8 billion.
Could the U.S. rejoin the WHO?
While the withdrawal process is underway, President Trump indicated that a return to the agency remains a possibility, though he noted that significant changes would be required. Addressing the crowd in Las Vegas, he stated, “Talvez considerássemos fazer isso novamente, não sei. Talvez sim. Eles teriam que limpar tudo,” suggesting that the agency would need to reform its operations before the U.S. would consider rejoining.
Timeline of the U.S. Exit
The transition of the United States out of the WHO is a structured process rather than an immediate cessation of ties. Key dates in this development include:
- January 20, 2025: President Trump announces the intent to withdraw the U.S. from the WHO following his inauguration.
- January 25, 2025: President Trump mentions the potential for a future return to the agency during a rally in Las Vegas.
- January 22, 2026: The scheduled date for the official completion of the U.S. withdrawal from the organization.
As of early 2026, the global health community continues to monitor the impact of this withdrawal, while the administration’s rhetoric leaves the door open for future diplomatic shifts depending on the agency’s internal reforms.