President Donald Trump ended this week the provision of U.S. Secret Service details to Hunter and Ashley Biden, the adult children of his predecessor, former President Joe Biden.

There was immediate and predictable outrage from Trump's haters, but his decision to revoke the protective details for Biden's adult children is covered by a law signed by former President Barack Obama, according to the Shore News Network.

Per the law's specifics, Hunter, 54, and Ashley, 43, are not eligible for continued Secret Service protection after their father's presidency ended, except in special circumstances entirely at the discretion of the Homeland Security secretary and their boss, the sitting president.

Trump revokes protective details for Hunter and Ashley Biden

In a Monday evening Truth Social post, President Trump wrote, "Hunter Biden has had Secret Service protection for an extended period of time, all paid for by the United States Taxpayer. There are as many as 18 people on this Detail, which is ridiculous!"

"He is currently vacationing in, of all places, South Africa, where the Human Rights of people has been strenuously questioned," he continued. "Because of this, South Africa has been taken off our list of Countries receiving Economic and Financial Assistance."

Trump further announced, "Please be advised that, effective immediately, Hunter Biden will no longer receive Secret Service protection. Likewise, Ashley Biden who has 13 agents will be taken off the list."

Law signed by Obama

Per the Shore News Network, President Trump had full authority to revoke the Secret Service details for Hunter and Ashley Biden thanks to the Former Presidents Protection Act of 2012, a bipartisan law passed by Congress and signed by former President Obama in January 2013.

Previously, under a law passed in 1958, former presidents, their spouses, and their children were provided with lifetime protective details at taxpayer expense, which was substantially reduced in the mid-1990s to just 10 years for presidents and spouses and little or no protection for their children.

The 2012 law, now codified as 18 U.S.C. § 3056, restored lifetime protection for former presidents and their spouses, unless the spouse remarries, and granted six months of protection to a former president's children under 16 years of age.

The law includes a catch-all provision that authorizes the Homeland Security secretary to "provide temporary protection for any of these individuals at any time thereafter," if such protection is deemed necessary.

Common practice was six months additional protection for adult children

NBC News reported that an unnamed Secret Service official acknowledged President Trump's post revoking the Secret Service protective details for Hunter and Ashley Biden, and said, "The Secret Service will comply and is actively working with the protective details and the White House to ensure compliance as soon as possible."

It was noted that while it has become common for the grown children of former presidents to receive an additional six months of protection after their parent leaves office, that is at the discretion of the sitting president and can be revoked or denied at any time.

The outlet further noted that Trump has also revoked Secret Service protection for a few other former high-ranking federal officials, including Dr. Anthony Fauci and former national security adviser John Bolton, whose protection was no longer deemed necessary.

NBC News reported that requests for comment to a spokesperson for former President Biden and an attorney for Hunter Biden went unanswered.