Are you talking about the thig-a-ma-jiggers that clamp the fork tubes (called top and bottom triple clamps) or the whitch-a-call-its that clamp the handlebar to the top triple clamp?
I'm guessing it's the fork's position in the triple clamps by your description.
If that got whacked out of line, loosen the top clamping bolts that pinch the top clamp around the fork tubes.
Stand in front to the bike, put the front wheel between yout knees, grab the handlebar, and give a pull in the direction it needs to go to make it straight.
When satisfied, tighten the top triple clamp bolts.