The Trump administration plans to accept a luxury Boeing 747-8 plane as a donation from the Qatari royal family that will be upgraded to serve as Air Force One, in possibly the biggest foreign gift ever received by the U.S. government, a senior official with direct knowledge of the matter said.

The plane will then be donated to President Donald Trump’s presidential library when he leaves office, the official said, allowing him to continue using it as a private citizen.

The plan raises substantial ethical issues, given the immense value of the lavishly appointed plane and the fact that Trump plans to use it after he leaves office.

The plan is expected to be announced in the coming days, as Trump makes the first extended foreign trip of his presidency to three nations in the Middle East, including Qatar.

The current plan has been signed off on by government lawyers who concluded it does not violate the emoluments clause of the Constitution and that the Defense Department can accept the gift, the official said.

— The New York Times