Letter carrier Henrietta Dixon, a 30-year veteran, sorts mail to be delivered before she sets out on her route in Philadelphia. Changes within the Postal Service could make some deliveries late.

In this Wednesday, May 6, 2020, photo, United States Postal Service carrier Henrietta Dixon sorts mail to be delivered before she sets out on her route in Philadelphia. Dixon has been with the post office for nearly 30 years, the last nine on her current route. (AP Photo/Matt Rourke)