WEST PALM BEACH, Florida (Reuters) -The Air Force One program may be further delayed until 2029 or years later, a senior administration official said, citing supply chain issues and changing requirements, after the White House said the project failed to deliver a new plane on time over the weekend.

The White House asked a judge Monday to allow it to continue barring the Associated Press from some press events, arguing in an new court filing that access to the president is at his discretion and not a constitutional right.

President Donald Trump says he is considering buying used Boeing aircraft — perhaps from an overseas seller — to use as Air Force One when he’s aboard, as he fumes over the U.S. plane-maker’s delays in producing two specially modified ones for presidential use.

A month before Donald Trump took office, tech mogul Elon Musk flew to Port San Antonio to meet with Boeing’s CEO about Air Force One.

Among the items taken from the president’s Florida residence were files that investigators said contained classified material and formed the central evidence in one of the criminal cases against him.

President Donald Trump toured a Boeing plane on Saturday to highlight delays in delivering new Air Force One aircraft, said the White House.

The Trump administration has blocked The Associated Press from traveling with President Trump on Air Force One and also from covering an Oval Office event.