A luxury jet, gifted by Qatar and upgraded by the U.S. Air Force, is being used as a presidential plane, with modifications costing an estimated $1 billion.

President Trump will fly to Britain using an older Air Force One aircraft. This decision follows scrutiny over a recently unveiled Boeing 747 gifted by Qatar. The new plane,…

Retrofitted $400 million jet faces scrutiny over alleged lack of missile detection and countermeasures systems