Atlantic City's main casino workers union will decide whether to authorize a strike against four of the city's gambling halls.
If members of Local 54 of the Unite-HERE union vote yes Thursday, the union will have given itself the right to call strikes against five of the city's eight casinos.
Thursday's vote involves Bally's, Caesars, Harrah's and the Tropicana. The union previously authorized a strike against the Trump Taj Mahal.
Even if the union votes yes, it would not walk out immediately. The vote lets the union call a strike at some future date.
The union says workers made painful sacrifices that need to be reversed now that Atlantic City's casinos are regaining their financial footing.
The Tropicana says it has invested $160 million in the casino since 2011.