WASHINGTON, DC - APRIL 18: White House Chief of Staff Susie Wiles sits in the Oval Office after U.S. President Donald Trump signed an Executive Order on 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)

WASHINGTON, DC - APRIL 18: U.S. Health and Human Services Secretary Robert F. Kennedy Jr. and Joe Rogan listen to U.S. President Donald Trump greets Bryan Hubbard in the Oval Office after 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. 2 (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - APRIL 18: U.S. President Donald Trump speaks in the Oval Office after 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. 2 (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - APRIL 18: Press gather with U.S. President Donald Trump in the Oval Office after 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. 2 (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - APRIL 18: U.S. President Donald Trump greets Bryan Hubbard in the Oval Office after 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. 2 (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - APRIL 18: U.S. President Donald Trump speaks in the Oval Office as he signed 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. 2 (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - APRIL 18: U.S. President Donald Trump speaks in the Oval Office after 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. 2 (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - APRIL 18: U.S. President Donald Trump greets Bryan Hubbard in the Oval Office after 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. 2 (Photo by Tasos Katopodis/Getty Images)