Paul K. Martin, appointed by President Joe Biden in December 2023, was informed of his dismissal through an email from the White House.

It’s not immediately clear whether the firings are legal, as the Trump administration is required to give a 30-day notice.

WASHINGTON—Eight inspectors general fired by President Trump in late January filed a lawsuit against the administration Wednesday alleging their termination violated the law, adding to dozens of other legal challenges facing the president at the start of his new term.