Watch live: Postmaster general testifies before the Senate

Postmaster General Louis DeJoyLouis DeJoyFBI investigating political fundraising of former employees of Postmaster General DeJoy Postal Service raises stamps to 58 cents as part of restructuring plan Lawmakers request investigation into Postal Service's covert operations program MORE is set to appear before the Senate Homeland Security and Governmental Affairs Committee.

DeJoy is expected to face questions about his controversial operational changes to the U.S. Postal Service since his appointment in May.

The hearing is scheduled for 9 a.m. EDT.

Watch live in the video above.