When backing a trailer, which way do you initially turn the steering wheel to make the trailer go to the left?

To back a TRAILER to the LEFT, you initially turn the steering wheel to the RIGHT (the OPPOSITE direction of where you want the trailer rear to go); once the trailer begins turning the desired way, you then turn the wheel back to FOLLOW the trailer. CDL combination. This is the counterintuitive part of trailer backing — the trailer goes opposite to your initial steering input. GENERAL BACKING TIPS: back slowly; make small steering movements and correct early; use both mirrors; pull forward to reposition if the trailer gets too far off (don't over-correct); back toward the driver's (left) side when possible for better visibility; GOAL (Get Out And Look) before and during backing; use a spotter when available. Knowing the opposite-steering principle for trailer backing is commonly tested.