US Exits WHO: The withdrawal of the US from the WHO was reportedly carried out through an executive order signed by US President Donald Trump. According to the Trump administration, the move fulfills a promise made on the president’s first day in office. US Exits WHO: The withdrawal of the US from the WHO was reportedly carried out through an executive order signed by US President Donald Trump. According to the Trump administration, the move fulfills a promise made on the president’s first day in office.