ATLANTIC CITY, N.J. — Still seething from the cancellation of its members’ health insurance and pension benefits nearly two years ago, about 1,000 members of Atlantic City’s main casino workers union went on strike against the Trump Taj Mahal casino today.

Local 54 of the Unite-HERE union told The Associated Press that it was unable to reach agreement on a new contract with the Taj Mahal, which is owned by billionaire investor Carl Icahn. The walkout involving about 1,000 union members began at 6 a.m. today.

About 20 picketers were outside the casino at the start of the critical July 4 weekend, among the busiest of the year for Atlantic City casinos. The picketers chanted: “All day and all night, Local 54 on strike!” and “We don’t get no contract, you don’t get no peace!” Supervisors from the casino were monitoring the picketing from a balcony.

It was not immediately clear whether the Taj Mahal planned to press management into service, hire temporary replacement workers, or some combination of both.

The Taj Mahal was the only one of the five casinos targeted by the union that was unable to reach a new deal.