March 8, 2010: Senator Bob Corker, who represents FedEx Corp.’s home state of Tennessee, said he will block legislation funding the Federal Aviation Administration because a provision may be added later making it easier for workers at the company to join unions.

Corker’s action extends a years-long fight in Washington between the mostly non-union FedEx and its unionized rival United Parcel Service Inc. over how workers at both companies should be treated under U.S. labor laws.

Click here to read more at Business Week.