Key will not turn in ignition switch

[ingydrummer]

So, I wake up this morning and get ready for work, got into the Hummer and put the key in the switch but can't turn the key to start the truck. I have done all the normal things like turning the wheel, and jiggling the key but nothing! How the hell does this just suddenly happen? I missed a day of work for a bad switch. Now looking to see if anyone else has had this happen to them. Mine is a 2003???
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