Points trip question

We are traveling FTW to PDX and return in September. IF a leg is delayed and we miss connections either outbound or return, what should we do - or is this automatically handled by AGR/Amtrak at no further cost to me? Thanks in advance for the help

It should be handled automatically, to put you on the next train out. However if (say) you have a sleeper on that (missed) train and the next train has none available, you must go coach.

When it becomes obvious you are going to miss the train, your reservation will automatically be re-made for the next train out or, if it's possible, a bus and/or train alternate connection to catch the train you are reserved on. If the new connection involves an overnight stay, Amtrak will take care of you. You will be instructed where to go in your connecting station to claim your meal and hotel vouchers. If your original ticket arrived by email, the ticket for your new connection will arrive the same way (awkward if you have no way to check email on the train -- when it happened to me on a very late EB, I had to borrow someone's smartphone to know what my new connection was supposed to be). If you do not like the new connection you have been given, you need to call AGR to negotiate any changes to the new itinerary.