WASHINGTON, DC - APRIL 18: U.S. President Donald Trump speaks in the Oval Office before signing an Executive Order April 18, 2026 in Washington, DC. The executive order directs the Food and Drug Administration to issue new guidance on the use of psychedelic drugs intended for clinical trials for U.S. veterans suffering from Post Traumatic Stress Disorder. (Photo by Tasos Katopodis/Getty Images)

US President Donald Trump speaks before signing an executive order in the Oval Office of the White House in Washington, DC on April 18, 2026. The executive order aims to further US federal medical research and clinical trials for certain psychedelic drugs. (Photo by Jim WATSON / AFP via Getty Images)

US President Donald Trump speaks before signing an executive order in the Oval Office of the White House in Washington, DC on April 18, 2026. Pictured behind President Trump are Secretary of Health and Human Services Robert F. Kennedy Jr. (L) and US media personality Joe Rogan. The executive order aims to further US federal medical research and clinical trials into certain psychedelic drugs. (Photo by Jim WATSON / AFP via Getty Images)

US President Donald Trump speaks before signing an executive order in the Oval Office of the White House in Washington, DC on April 18, 2026. Pictured behind President Trump are Secretary of Health and Human Services Robert F. Kennedy Jr. (center L) and US media personality Joe Rogan (center R). The executive order aims to further US federal medical research and clinical trials into certain psychedelic drugs. (Photo by Jim WATSON / AFP via Getty Images)

US President Donald Trump speaks before signing an executive order in the Oval Office of the White House in Washington, DC on April 18, 2026. The executive order aims to further US federal medical research and clinical trials into certain psychedelic drugs. (Photo by Jim WATSON / AFP via Getty Images)

US President Donald Trump speaks before signing an executive order in the Oval Office of the White House in Washington, DC on April 18, 2026. Pictured behind President Trump are Secretary of Health and Human Services Robert F. Kennedy Jr. (3L) and US media personality Joe Rogan (2R). The executive order aims to further US federal medical research and clinical trials into certain psychedelic drugs. (Photo by Jim WATSON / AFP via Getty Images)

TOPSHOT - US President Donald Trump walks on the South Lawn after arriving on Marine One at the White House in Washington, DC, April 17, 2026, following a trip to Nevada and Arizona. (Photo by SAUL LOEB / AFP via Getty Images)

IN FLIGHT - APRIL 17: U.S. President Donald Trump speaks to members of the press aboard Air Force One on April 17, 2026 just prior to landing at Joint Base Andrews, Maryland. Trump said the United States received favorable news related to Iran just prior to landing at Joint Base Andrews. (Photo by Win McNamee/Getty Images)