CONSUMER WAS TRAVELING ABOUT 62MPH ON THE HIGHWAY WHILE PULLING A CARGO VAN WITH FURNITURE INSIDE OF THE HITCH THAT THEY WERE MOVING. TRAILER STARTED TO FISHTAIL, CAUSING LOSS OF CONTROL. TRAILER DISCONNECTED FROM VEHICLE AND REMAINED ON STREET LEVEL. THEN, VEHICLE VEERED INTO A GUARDRAIL AND INTO A DITCH. AK