The whistleblower, described by lawyers as a federal official, disclosed information about the Postal Service's new mail-voting procedures to Democratic Sen. Richard Blumenthal of Connecticut.

The whistleblower says the U.S. Postal Service has ignored court orders and is moving forward with a plan that could completely “derail” the midterm elections.

The US Postal Service effort to develop a sweeping new system for verifying mail ballots has invited a host of IT concerns among agency officials, with some describing the process…

The whistleblower's complaint comes as the Trump administration's U.S. Postal Service ballot rule is being challenged in court.