Democrats say they are ramping up USPS investigation and call on top officials to testify

(CNN) -- House Democrats said Sunday they are "ramping up" their investigation of the United States Postal Service as Democratic leaders, including House Speaker Nancy Pelosi and Senate Minority Leader Chuck Schumer, called on Postmaster General Louis DeJoy and Chairman of the Postal Service Board of Governors Robert Duncan to testify.

Pelosi told House Democrats on Sunday evening she wanted the House to return this week to act on the issues regarding the USPS, she wrote in a letter.
"Lives, livelihoods and the life of our American Democracy are under threat from the President," Pelosi wrote. "I am calling upon the House to return to session later this week to vote on Oversight and Reform Committee Chairwoman (Carolyn) Maloney's 'Delivering for America Act,' which prohibits the Postal Service from implementing any changes to operations or level of service it had in place on January 1, 2020."