Ivanka, the daughter of the US President, said that she spent more than 5 hours making a testimony to the Attorney General's office, indicating that he questioned the rates charged by the Trump Hotel during the inauguration ceremony.

In a statement posted on social media, Ivanka stated that she showed investigators an email 4 years ago, which included instructions to the hotel to adopt reasonable rates, and stressed that the motives for this investigation are political and that it is a waste of taxpayers' money.

Investigators in Washington, DC, took the testimony of Trump's daughter and his personal advisor, as part of the investigation into the misuse of funds that were allocated to the President's inauguration in 2017.

The attorney general's office in Washington, DC, filed a lawsuit last January against the Trump business establishment and the Presidential Inauguration Committee, accusing them of misbehaving more than a million dollars raised by a non-profit organization by spending it on events in a hotel in the capital owned by the US President.

Earlier, the American New York Times revealed - citing informed sources - that President Trump was studying with his advisers issuing a preemptive presidential pardon for 3 of his children and son-in-law Jared Kushner, as well as his lawyer, Rudy Giuliani, before leaving the White House.

The American newspaper reported in a report published on its website on Wednesday that Trump told his advisers that he was concerned about the possibility of the administration of President-elect Joe Biden using the Ministry of Justice to retaliate against him by targeting 3 of his sons, Donald Jr., Eric and Ivanka, and his son-in-law, Kushner.

She added that Donald Trump Jr. is under investigation by Special Counsel Robert Mueller, regarding contacts he had made with the Russians for providing false information about Hillary Clinton during the 2016 elections.