UPS Workers Vote to Give Union Leaders Option to Call Strike (1)

United Parcel Service Inc.’s unionized workers voted in favor of giving Teamsters leaders the option to call a strike as the two sides continue talks to renew a five-year labor contract.

Of the union members that voted, 97% supported the strike authorization, the Teamsters said Friday in a statement. The union didn’t provide data on voter participation. Teamsters President Sean O’Brien has pledged to call a strike if an agreement, which would cover more than 340,000 workers, isn’t reached before the contract expires on July 31.

“This vote shows that hundreds of thousands of Teamsters are united and determined ...