• The president's brother, Robert Trump, has been working to block the book from being published.
  • The book, "Too Much and Never Enough: How My Family Created the World's Most Dangerous Man," is scheduled to be released on July 28.
  • Mary Trump now has to appear before the judge on July 10. The judge ordered the publisher not to release the book until the case is decided.
  • "The trial court's temporary restraining order is only temporary but it still is a prior restraint on core political speech that flatly violates the First Amendment. We will immediately appeal," Mary Trump's attorney said in a statement.
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President Donald Trump's niece, Mary Trump, on Tuesday hit a bump in the road to publishing her new tell-all book when a New York judge granted Robert Trump, the president's younger brother and Mary's uncle, a temporary restraining order, The Daily Beast reported .

Robert Trump's lawsuit over the book alleges that Mary Trump is violating a nondisclosure agreement dating back to an inheritance dispute in the family regarding Fred Trump Sr.'s estate. The president has also said that the nondisclosure agreement means his niece is not "allowed" to publish the book.

The book, "Too Much and Never Enough: How My Family Created the World's Most Dangerous Man," is scheduled to be released on July 28.

Mary Trump and the publisher, Simon & Schuster, must now appear before Judge Hal Greenwald on July 10. Greenwald ordered the publisher not to publish the book, which reportedly paints a damning picture of the president and Trump family more generally, until the case is decided.

"Pending the hearing and determination of Petitioner Robert S. Trump's within motion for a preliminary injunction, Mary L. Trump and Simon & Schuster, Inc., together with their respective members, officers, employees, servants, agents, attorneys, representatives and all other persons acting on behalf of or in concert with either or both of them, are hereby temporarily enjoined and restrained," the judge ordered, per the Daily Beast.

"From publishing, printing or distributing any book or any portions thereof including but not limited to the book entitled: 'Too Much and Never Enough, How My Family Created the World's Most Dangerous Man,' in any medium containing descriptions or accounts of Mary L. Trump's relationship with Robert S. Trump, Donald Trump, or Maryanne Trump Barry," the judge added.

Mary Trump's attorney, Theodore Boutrous Jr., in a statement to the Daily Beast said: "The trial court's temporary restraining order is only temporary but it still is a prior restraint on core political speech that flatly violates the First Amendment. We will immediately appeal."

"We will immediately appeal. This book, which addresses matters of great public concern and importance about a sitting president in election year, should not be suppressed even for one day," Boutrous added.

Among other things, Mary Trump is said to reveal in the book that she leaked the documents that led to a blockbuster New York Times investigation into the president's finances that found he inherited and subsequently squandered much of his wealth from his father.

Robert Trump previously sought to block the publication of the book via a Queens County court in New York. A judge there promptly dismissed the lawsuit and urged the president's younger brother to refile in state Supreme Court. Robert Trump then submitted a new request for a temporary restraining order in Dutchess County, located in upstate New York.

Jake Lahut contributed reporting.

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