哈里斯今日暂时代理美国总统职务

远航一号

President Biden will temporarily transfer power to Vice President Kamala Harris Friday morning when he is under anesthesia for a "routine" colonoscopy at Walter Reed Medical Center, the White House said Friday.

The president traveled to Bethesda, Maryland, for a physical exam, one day before his 79th birthday. Biden arrived at 8:51 a.m. ET and waved to reporters who were traveling with him.

White House press secretary Jen Psaki said Biden will also undergo a colonoscopy while there.

The transfer of power falls under Section 3 of the 25th Amendment to the U.S. Constitution, according to the White House: "Whenever the President transmits to the President pro tempore of the Senate and the Speaker of the House of Representatives his written declaration that he is unable to discharge the powers and duties of his office, and until he transmits to them a written declaration to the contrary, such powers and duties shall be discharged by the Vice President as Acting President."