Mercedes workers in Alabama decide not to join UAW.

Mercedes workers in Alabama voted against joining the UAW last week.

 The vote count showed 56 percent of workers rejecting union membership.

The results await certification by the National Labor Relations Board (NLRB).

 Last month, workers at a Volkswagen plant in Tennessee voted to join the UAW.

 Mercedes has been accused of hostility toward the union campaign.

 The UAW alleges Mercedes engaged in illegal behavior and intimidation tactics.

 UAW President Shawn Fain sees the defeat as a learning experience.

 Despite the loss, Fain remains optimistic about future union efforts.

 Mercedes workers will have to wait a year for another election opportunity.

 The UAW's campaign extends to multiple automakers, including Tesla and Toyota.