The long-delayed upgrade of the aircraft designed to be a flying White House has been one of Trump’s pet projects.

In an interview with CBS News, Mr Trump said the new Boeing planes will be "red, white and blue, which I think is ... the line", and "top in the world". Air Force One consists of two planes.

"There's your new Air Force One," he said, holding up the drawings of the red, white and blue planes. The revamp would be the first since President John F Kennedy was in office. Critics note a ...