Thanks Often1. I cannot use my DL for ID (see below).
I did read the FAQ, but they did not answer two of my questions. One was already answered here (about when the expiration date is if you renew early) and the other is do you have to return your passport card when renewing?
Also, my state DL is not good for boarding airplanes or entering federal buildings. It won't be until 2020 or later when I renew it and get a Real ID. My state is not Real ID compliant. So I need to keep my passport card for ID.