Former President Donald Trump and his two eldest children, Ivanka and Don Jr., must be interviewed under oath in New York Attorney General Letitia James' (D) probe of the Trump Organization's business practices.
Attorneys for the family had attempted to quash the subpoenas issued in December to the former president and last month for his children. Judge Arthur Engoron ordered the three to comply on Thursday, The Associated Press reported.
The three Trumps are required to sit for a deposition within three weeks, Engoron ruled.
The order came after a two hour hearing with attorneys for the Trumps and James' office, according to AP.
The ruling is likely to be appealed.
The former president defended his financial documents under question in James' probe earlier this week.