A group of Democratic U.S. senators is voicing concern over U.S. Postal Service processing changes and what those could mean for voting with mail ballots.

The U.S. Postal Service says it intends to open its “last-mile” delivery network to large and small shippers, expanding beyond current arrangements with giants such as Amazon and UPS.

Postmaster General David Steiner says the U.S. Postal Service can't fix its finances through cuts alone.

The U.S. Postal Service is turning 250.

The U.S. Postal Service is marking its upcoming 250th anniversary with the release of new commemorative stamps.

A former CEO of the nation’s largest waste management company who currently serves on the FedEx board of directors will take over control of the U.S. Postal Service.

A Massachusetts couple subjected to threats and other bizarre harassment from former eBay Inc. employees has filed a civil lawsuit against the Silicon Valley giant.