WASHINGTON (AP) — More than 20 civil service employees resigned Tuesday from billionaire Trump adviser Elon Musk’s Department of Government Efficiency, saying they were refusing to use their technical expertise to “dismantle critical public services.”

“We swore to serve the American people and uphold our oath to the Constitution across presidential administrations,” the 21 staffers wrote in a joint resignation letter, a copy of which was obtained by The Associated Press. “However, it has become clear that we can no longer honor those commitments.”

The employees also warned that many of those enlisted by Musk to help him slash the size of the federal government under President Donald Trump’s administration were political ideologues who did not have the necessary skills or experience for the task ahead of them.

Elon Musk’s Department of Government Efficiency group has made swift work of the billionaire’s goal to scale back or dismantle much of the federal government, end diversity policies and otherwise further President Donald Trump’s agenda.

DOGE employees, many of whom have no government experience, have been going through data systems, shutting down DEI programs and in some cases, whole agencies.

As of Feb. 10, ABC has tracked Musk and his DOGE team gaining access to at least 15 federal agencies.

A coalition of 22 attorneys general sued the federal government, claiming that the $4 billion in cuts would “grind to a halt” studies on cancer, heart disease and other conditions.

A federal judge on Monday temporarily blocked the National Institutes of Health from cutting research funding in 22 states that filed suit earlier in the day arguing that the plan would eviscerate studies into treatments for cancer, Alzheimer’s, heart disease and a host of other ailments.

The funding cuts, announced late Friday, were to take effect on Monday. But the attorneys general of Massachusetts and 21 other states sued. They argued that the Trump administration’s plan to slash $4 billion in overhead costs — known as “indirect costs” — violated a 79-year-old law that governs how administrative agencies establish and administer regulations.