WASHINGTON − President Donald Trump has canceled U.S. Secret Service protection for former Vice President Kamala Harris, according to a senior White House official familiar with the situation.

Vice presidents typically receive a security detail for six months after leaving office, but former President Joe Biden extended Harris' protection to one year, according to the source.

“The Vice President is grateful to the United States Secret Service for their professionalism, dedication, and unwavering commitment to safety,” Kirsten Allen, a Harris adviser, said in a statement to USA TODAY.

The cancellation comes as Harris prepares for a 15-city book tour.

Trump's revocation of the security detail was first reported by CNN and The New York Times. Trump signed his memo Aug. 28 and the security detail will end Sept. 1.