Democrats are increasingly voicing concerns over vote-by-mail plans that many states have adopted amid the COVID-19 pandemic.

Much of the concern stems from the recent changes made to the U.S. Postal Service, where President Trump appointed longtime GOP donor and businessman Louis DeJoy as the new postmaster general. In his short time as head of the federal agency, DeJoy has implemented numerous centralization changes and has sidelined a number of Postal Service veterans.