Truck binds when turning.

[Blazerowner]

It's a little hard to explain but when I make a turn the more I move toward locking the wheel the truck tends to want to not turn as tight as it should. Basically it will push the tires away from the turn in the front. I'm not sure what is the cause. It does have some wide front tires but so does my blazer and it turns no problem. Could it be something with the steering? Maybe it's not turning both wheels at the same rate. Any ideas appreciated.