So they have to change their numbers. Is this the best we can do?
It’s more than that.
With a cellphone number and GPS, you have metadata that builds a profile of the congress critters life.
That ne phone will follow the same pattern, unless the congress critter leaves DC for good
It’s one thing to change your number and tell everyone in your contact list, but if everyone on your contact list had changed their number too, then what? It’s the confusion of a mini tower of babel event.