Traveling with expired passport and Visa in same country [duplicate]

Once you are inside the US, the expiry of your visa is not relevant anymore. What governs is your immigration status which was determined when you entered, and may be longer or shorter than your visa.

As far as government rules is concerned, traveling between states does not require passports any more than crossing the street does.

Depending on your way of traveling, you may need to present some identification (in particular, if you're flying, airlines and airport security will require this), and if the expired passport was the only government-issued ID you had, that can be a problem. But again, that will be the same whether you're flying between states, or within a single state.