New Jersey’s casinos look set to remain confined to Atlantic City after north Jersey casino supporters suspended their campaign to win voters over to their side.

On Thursday, the main backers of the push to launch two new casinos in the northern part of New Jersey suspended their OUR Turn NJ campaign, which had been running TV and radio ads intended to encourage voters to approve the referendum question on November’s election ballot.

When New Jersey first approved casino gaming in 1976, the state constitution restricted casino gambling to within Atlantic City’s borders. A voter referendum is therefore required before the restriction can be amended. But recent polling showed a broad majority of New Jersey voters remained unsold on the merits of further casino expansion.

Sensing doom, Meadowlands Racetrack operator Jeff Gural and former Reebox CEO Paul Fireman, who wanted to build separate casinos in different areas of north Jersey, released a joint statement on Thursday saying the poll data “speaks for itself.”