Gov. Chris Christie says it was a "dumb move" when New Jersey voters rejected a referendum to expand casino gambling to northern New Jersey.

Christie on Tuesday spoke while co-hosting the "Boomer and Carton" program on New York radio station WFAN.

"You know what happened, all the New York money, sponsored commercials in New Jersey and the people listened to the New York money, and you know what's going to happen?" says Christie. "New York is going to expand casino gaming into New York City, they're going to make all the money and New Jersey is not, and it was a dumb move by the voters but they did it."

New Jersey voters last month overwhelmingly rejected a ballot question about authorizing two new casinos in counties near New York City. The Republican blamed lobbying efforts by casinos and unions in Atlantic City and New York, which spent more than $11 million against the referendum.

Christie says he believes casino gambling will eventually expand out of Atlantic City. The governor also says he thinks the state will have sports gambling in the next year at Monmouth Park in Oceanport.