Is Trump Plaza the next shoe to drop in the diminishing Atlantic City casino market? It would appear so.

The Press of Atlantic City is reporting that State Senator Jim Whelan said Friday he's been told 1,009 Trump Plaza employees will receive WARN notices next week and the casino may close in September.

“It’s certainly credible,” he said. “I’ve heard it from multiple sources.”

Rumors about the closing of Trump Plaza have been circulating for some time, and Townsquare Media's Harry Hurley was the first to report this week that sources said the closing was imminent.

Trump Plaza has been one of the poorest performing Atlantic City casinos for several years and saw a 26% decline in income in May of 2014 compared to a year ago.

If this report is true, Trump Plaza would be the third casino to announce closing in Atlantic City since the beginning of this year. Atlantic Club closed in January, after competitors teamed up to buy and shut down the casino.

Showboat Casino is set to close Aug. 31.

Revel Casino is in bankruptcy and may close by Sept. 1st if a buyer isn't found.

A spokesman for Trump Plaza had no comment this evening.