A military helicopter carrying US President Donald Trump came less than a mile from a passenger jet above Washington on Tuesday after garbled communications with Ronald Reagan National Airport's tower delayed air traffic controllers from clearing nearby air traffic

The presidential helicopter was involved in a so-called “loss of standard separation,” which requires aircraft to be at least 1.5 miles horizontally and 500 feet vertically away.

The presidential helicopter was involved in a so-called “loss of standard separation,” which requires aircraft to be at least 1.5 miles horizontally and 500 feet vertically away.