Mazda Tribute Forum : “I can get the key into the ignition but I can not get the key to turn so that I ...”

You may need to jiggle the steering wheel, sometimes the locking mechanism causes you not to be able to turn the key, and jiggling the wheel while trying to turn the key gently may help.  

I had that same problem once, and i spent about five minutes trying to get it to turn. I asked my dad what the deal was cause he used to drive it, and he told me to just jiggle the steering wheel,, like the smart guy ^ said.