Trump and 2 adult children set to testify in New York attorney general investigation starting July 15

Republican presidential candidate Donald Trump (C) gives two thumbs up as Donald Trump Jr. (L) and Ivanka Trump (R) stand and cheer for Eric Trump as he delivers his speech during the third day of the Republican National Convention on July 20, 2016 at the Quicken Loans Arena in Cleveland, Ohio.

According to a court filing, former President Donald Trump and two of his children are scheduled to testify on July 15 in a civil investigation of the Trump family business.

The agreement to testify is contingent on certain conditions.

If the New York state appeals court stayed the judge's order, the testimony wouldn't happen on that day.

Lawyers for the family and company tried to block the subpoena, but couldn't.

James is looking into the possibility of illegal manipulation of the valuations of real estate assets owned by the Trump Organization.

Eric Trump, Donald Trump Jr.'s brother, answered questions under oath in the past.

A top executive in the Trump Organization is the daughter of the president.

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