Sean Spicer says he's suing Biden for firing him from a position Trump gave him at the US Naval Academy

• Sean Spicer, a former White House press secretary, said he planned to sue President Joe Biden.
• Biden had removed Spicer and other Trump appointees from advisory roles at US military schools.
• "I will not be submitting my resignation, and I will be joining a lawsuit," Spicer said.

Sean Spicer, a former White House press secretary, said he planned to sue President Joe Biden over a demand that Spicer and others resign from positions at US military academies given to them by President Donald Trump.

"I will not be submitting my resignation, and I will be joining a lawsuit to fight this," Spicer said on Wednesday on Newsmax, the conservative cable network where he is an anchor.

He shared a letter from the White House Office of Presidential Personnel asking him to resign from the board of visitors at the United States Naval Academy, an oversight position.

If he did not quit by Wednesday, it said, he would be fired.

The Biden administration on Wednesday sent letters to 11 Trump-era appointees to military-academy advisory boards requesting their resignations. They included Spicer, the former national security advisor H. R. McMaster, and Kellyanne Conway, a former senior advisor to Trump. The appointees held positions at schools including the US Military Academy and the Naval Academy.

Jen Psaki, the White House press secretary, confirmed on Wednesday that the administration was seeking to remove them, Insider's Grace Panetta reported.

Psaki took a dig at Spicer and Conway in the process.

"The president's objective is what any president's objective is, was to ensure you have nominees and people serving on these boards who are qualified to serve on them and who are aligned with your values. And so yes, that was an ask that was made," Psaki said.

She added, "I will let others evaluate whether they think Kellyanne Conway and Sean Spicer and others were qualified or not political to serve on these boards."

Spicer hit back at Psaki on Newsmax, citing his service in the Navy Reserve, where he is a commander.

"For 22 years I've had the honor of serving alongside some of the most talented, patriotic, and brave individuals this country has to offer," he said, adding, "I've done multiple tours, and politics has never entered into my service."

He did not specify the nature of the lawsuit he planned to bring or explain how Biden's decision could be deemed unlawful.

Conway, who sits on the board of visitors at the Air Force Academy, said that she would refuse to resign and that the request "seems petty and political, if not personal."

Russell Vought, who was a director of the Office of Management and Budget under Trump, also refused to resign, sharing a photo of the letter and tweeting: "No. It's a three year term."