The passport is already expired. So the primary situation is that of getting a new passport.

Given my own experience with the lamination coming off around photos on the passports a few years before the OP’s passport issue year, I will note that the passport agency in DC didn’t consider them damaged and literally just repressed the lamination. Use of the passports for renewal generally went without a hitch. The OP’s passport isn’t expired by more than 5 years yet, so if this lamination thing is about a US “adult passport”, I would get the renewal in sooner than later. If for some reason they consider the passport to be “damaged” — rather than normal wear and tear — deal with it if/when it comes up.