(FILES) This photograph shows a VC-25A Air Force One parked on the tarmac prior to US President Donald Trump's departure from Ankara Esenboga Airport in Ankara, Turkey, on July 8, 2026, after attending the NATO Summit. US President Donald Trump secretly flew out of Turkey last month on a smaller plane than previously known due to an assassination threat from Iran, the Washington Post reported on August 10, 2026. According to an anonymous US official who spoke to the Post, Trump boarded an Air Force One jet in Ankara on July 8, but then moved into a catering container attached to the plane. The container then ferried him to a smaller C-32A aircraft that flew him to Britain, while media and some officials were led to believe Trump was still on the bigger jet. (Photo by SAUL LOEB / AFP via Getty Images)

(FILES) US President Donald Trump gestures in front of Air Force One after disembarking from the older VC-25A Air Force One at Royal Air Force (RAF) Mildenhall in Mildenhall, eastern England on July 8, 2026, before continuing his journey to the United States while returning from a NATO summit in Turkey. US President Donald Trump secretly flew out of Turkey last month on a smaller plane than previously known due to an assassination threat from Iran, the Washington Post reported late August 10, 2026. According to an anonymous US official who spoke to the Post, Trump boarded an Air Force One jet in Ankara on July 8, but then moved into a catering container attached to the plane. The container then ferried him to a smaller C-32A aircraft that flew him to Britain, while media and some officials were led to believe Trump was still on the bigger jet. (Photo by SAUL LOEB / AFP via Getty Images)

TOPSHOT - US Secretary of Health and Human Services Robert F. Kennedy Jr. (R) looks on as President Donald Trump speaks before signing an executive order calling for more research and flexibility on vaccines, in the Oval Office of the White House in Washington, DC, on August 10, 2026. Trump signed an executive order Monday pushing for a rethink of school vaccine mandates and repeating calls for the measles-mumps-rubella vaccine to be separated into three individual shots. Curbing vaccines has been a key priority for Health Secretary Robert F. Kennedy Jr, who founded an anti-vaccine nonprofit and has long promoted a disproven link between immunization and autism. (Photo by Jim WATSON / AFP via Getty Images)

US President Donald Trump signs an executive order calling for more research and flexibility on vaccines, alongside US Secretary of Health and Human Services Robert F. Kennedy Jr. (R) and Jayme Leagh Franklin (L), founder of The Conservateur, in the Oval Office of the White House in Washington, DC, on August 10, 2026. Trump signed an executive order Monday pushing for a rethink of school vaccine mandates and repeating calls for the measles-mumps-rubella vaccine to be separated into three individual shots. Curbing vaccines has been a key priority for Health Secretary Robert F. Kennedy Jr, who founded an anti-vaccine nonprofit and has long promoted a disproven link between immunization and autism. (Photo by Jim WATSON / AFP via Getty Images)

TOPSHOT - US President Donald Trump closes his eyes before signing an executive order calling for more research and flexibility on vaccines, in the Oval Office of the White House in Washington, DC, on August 10, 2026. Trump signed an executive order Monday pushing for a rethink of school vaccine mandates and repeating calls for the measles-mumps-rubella vaccine to be separated into three individual shots. Curbing vaccines has been a key priority for Health Secretary Robert F. Kennedy Jr, who founded an anti-vaccine nonprofit and has long promoted a disproven link between immunization and autism. (Photo by Jim WATSON / AFP via Getty Images)

TOPSHOT - US Secretary of Health and Human Services Robert F. Kennedy Jr. (R) looks on as President Donald Trump speaks before signing an executive order calling for more research and flexibility on vaccines, in the Oval Office of the White House in Washington, DC, on August 10, 2026. Trump signed an executive order Monday pushing for a rethink of school vaccine mandates and repeating calls for the measles-mumps-rubella vaccine to be separated into three individual shots. Curbing vaccines has been a key priority for Health Secretary Robert F. Kennedy Jr, who founded an anti-vaccine nonprofit and has long promoted a disproven link between immunization and autism. (Photo by Jim WATSON / AFP via Getty Images)

TOPSHOT - US President Donald Trump looks on before signing an executive order calling for more research and flexibility on vaccines, in the Oval Office of the White House in Washington, DC, on August 10, 2026. Trump signed an executive order Monday pushing for a rethink of school vaccine mandates and repeating calls for the measles-mumps-rubella vaccine to be separated into three individual shots. Curbing vaccines has been a key priority for Health Secretary Robert F. Kennedy Jr, who founded an anti-vaccine nonprofit and has long promoted a disproven link between immunization and autism. (Photo by Jim WATSON / AFP via Getty Images)

FILE - President Donald Trump holds up an image taken from his Truth Social account at an event about coal, Thursday, June 4, 2026, in the Oval Office of the White House in Washington. (AP Photo/Julia Demaree Nikhinson,File)