Due to bureaucratic insanity/logic, we need to change the middle name on my stepdad's passport from the initial to the full middle name. We've already done so on his Texas driver's license.

But does anyone know what corroborative evidence the passport office will need to document the name change? Can a Texas driver's license or even better, temporary paper license suffice?

I called the passport office & the *insert curse word of choice here* gave me some spiel about the person calling them himself and refusing to just give me a damn answer to an extremely simple question.

Anyways, thanks in advance, guys!