GM Strike Vote Going Down to the Wire as Big Local Rejects Deal

General Motors Co. employees near Nashville, Tennessee, narrowly rejected a proposed contract with the United Auto Workers, an early indication that the union’s vote to end a more than five-week strike could be a close call.

In one of the first votes by a major union local, a 51% majority of GM’s roughly 3,300 workers at its Spring Hill assembly plant cast ballots against the tentative agreement reached last week. Most UAW locals won’t post results until Friday. At least two smaller locals voted overwhelmingly in favor of the deal Monday.

The Tennessee results probably are “casting some market ...