The book,scheduled to be published in July,was written by Mary Trump,the daughter of Fred Trump Jr,the President's elder brother,who died in 1981. An online description of it says it reveals"a nightmare of traumas,destructive relationships,and a tragic combination of neglect and abuse".
The judge on Tuesday said no portion of the book could be distributed before he decides the validity of Robert Trump's claims. Robert Trump argues Mary Trump must comply with a written agreement among family members that such a book cannot be published without permission from other family members.
Mary Trump's lawyer,Theodore J. Boutrous Jr,and her publisher,Simon&Schuster,promised an immediate appeal.
"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,"Boutrous said.
"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 said in a statement.
Adam Rothberg,a Simon&Schuster spokesperson,said the publisher was disappointed but looks forward"to prevailing in this case based on well-established precedents regarding prior restraint".