White House Press Secretary Karoline Leavitt said the aircraft turned around out of an an abundance of caution.

President Donald Trump’s plane, Air Force One, has safely returned to Joint Base Andrews about an hour after departing for Switzerland on Tuesday evening.

The Boeing plane taking Donald Trump to Switzerland had to make a dramatic U-turn on Tuesday night, not the first time a presidential aircraft has suffered a fault, forcing a change of plans

Air Force One was en route to the World Economic Forum in Davos when the lights in the press cabin briefly went dark, a reporter said, per Associated Press. A half hour into the journey, the press was told the flight would be returning to Joint Base Andrews. The president later took a smaller version of Air Force One to Switzerland.

Trump is expected back at Joint Base Andrews at 11 p.m., with the delay pushing his arrival at Davos by an unknown period of time.

President Donald Trump took a replacement plane to Switzerland after Air Force One turned around, leaving him with little time before his speech.

Donald Trump has had a stroke, a prominent clinical professor of medicine said, listing evidence he said he saw in the president's behavior. "My impression is that President Trump has had a stroke, and I think there's several lines of evidence supporting that,