Postmaster General Louis DeJoy, shown last month during a House Oversight and Reform Committee hearing, is now under investigation by that committee.

FILE – In this Aug. 24, 2020, file photo, Postmaster General Louis DeJoy testifies during a House Oversight and Reform Committee hearing on the Postal Service on Capitol Hill in Washington. President Donald Trump says he’s open to an investigation of DeJoy after some of DeJoy’s former employees said they felt pressured to donate to GOP candidates.(Tom Williams/Pool via AP)