It will be more costly than expected due to a time-consuming modification process, supply disruptions, and other challenges.

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

President Donald Trump has publicly aired his grievances with Boeing over delivery delays to the arrival of two new Air Force One jets.