US 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. (Photo by Jim WATSON / AFP via Getty Images)

US 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. (Photo by Jim WATSON / AFP via Getty Images)

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. (Photo by Jim WATSON / AFP via Getty Images)

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. (Photo by Jim WATSON / AFP via Getty Images)

US 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. (Photo by Jim WATSON / AFP via Getty Images)

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. (Photo by Jim WATSON / AFP via Getty Images)

President Donald Trump speaks in the Oval Office of the White House, Thursday, Aug. 6, 2026, in Washington. (AP Photo/Alex Brandon)

WASHINGTON, DC - AUGUST 10: Construction continues on a new helipad on the South Lawn of the White House and the East Wing ballroom on August 10, 2026, in Washington, DC. U.S. President Donald Trump says he will appeal to the Supreme Court after a federal appeals court ruled that congressional approval is required to build the $400 million ballroom. (Photo by Andrew Harnik/Getty Images)