Former White House communication aide and author of "Team of Vipers" Cliff Sims is suing President Donald Trump.
"This action seeks to permanently enjoin the Defendants from silencing Mr. Sims with respect to any information he learned during his tenure as a federal employee, and any legal rights and protections therefrom that may necessarily flow", the court document reads.
Michael Glassner, who leads the Trump campaign, did not immediately respond to a phone call seeking comment.More news: Free speech being censored in different ways & forms: Amol Palekar
When Sims' book dropped last month, Trump attempted to discredit it by claiming that he "hardly knew" the former White House aide. He signed a nondisclosure agreement.
"The Trump campaign's demand for arbitration is nothing but a subterfuge for the actions of the [federal government]", the suit claimed, according to the Times, and was "undertaken under express authorization and instruction, and certainly with the blessing of, President Trump".More news: Missouri prison nurse fatally poisons husband to marry (life) inmate lover
Trump has had members of the administration and his campaign sign non-disclosure agreements, as revealed by Omarosa Manigault-Newman, who wrote a scathing book about her time working for Trump after she was sacked.
The New York Times reported on Monday that Sims is "suing the president in his official capacity, alleging that he used his campaign organization as a "cutout" to improperly seek retribution against former employees and keep them from invoking their First Amendment rights".
Zaid asserts in the lawsuit that the United States government is "seeking to impose civil liability against Mr. Sims through application of NDAs that apply to information Mr. Sims learned exclusively during his federal service".More news: Mother arrested for felony murder of her son 33 years later
Last year, former senior adviser Omarosa Manigault Newman claimed in her own tell-all book that the Trump campaign had offered her a $15,000-a-month job in exchange for signing an NDA that would have barred her from disclosing details of her time at the White House. Sims says that he's not sure if he signed an NDA to work in the White House.