The postmaster general and the U.S. Postal Service argue they can't comply with a judge's order to return 700 high-speed mail processors to service.
The postmaster general also faces a congressional subpoena demanding documents about his meetings.
Postmaster General Louis DeJoy refused to let state officials review notices before they went out, says Colorado Secretary of State Jena Griswold.
DeJoy is alleged to have violated North Carolina and federal campaign finance laws.
Despite congressional subpoenas and Freedom of Information Act requests, the USPS might succeed in keeping the document secret until after the election.
House Democrats are planning to investigate straw-donor claims against Postmaster General Louis DeJoy from his former employees at a logistics company.
The Washington Post first reported that DeJoy pressured former employees to donate to GOP lawmakers, then reimbursed them. He has denied the claims.
“When we got our bonuses, let’s just say they were bigger, they exceeded expectations," a former employee told The Washington Post.
The House Oversight Committee subpoenaed Postmaster General Louis DeJoy for records about USPS delivery delays.
The subpoena seeks documents related to controversial mail delays that threaten the timely delivery of absentee ballots in November.