Support among voters for holding a constitutional convention has plummeted, with a majority opposing next Tuesday’s referendum, a Siena College poll released this morning found.

The poll of likely voters found, by a margin of 57 percent to 25 percent, oppose holding a convention. A similarly wide majority of voters, 60 percent to 29 percent, believe that holding a convention will be too costly and a waste of time, as opposed to a once-a-generation chance to remake state government.

The poll comes after previous surveys of registered voters have shown support for holding a convention, though it had been on a steady decline.

And the lopsided change comes after several weeks of spending by labor unions and others in a coalition opposing the convention, who worry that holding one would put hard-won benefits in the existing constitution at risk.

Labor unions have spent heavily opposing the convention, pouring millions of dollars into an advertising and mail campaign to urge opposition. At the same time, labor groups and environmental organizations have been conducting member-to-member efforts.

Turnout is expected to be minimal in next week’s off-cycle vote and voters will also consider two ballot questions for constitutional amendments: Stripping officials convicted of felonies of their pensions and the creation of a land bank in the Adirondacks and Catskills parks.

With less than a week to go before Election Day, a third of voters said they’ve heard or read a lot about the referendum, while 27 percent responded they have heard or read something. Only 19 percent say they’ve received no information.

Supporters of holding a convention believe it’s a chance to institute needed reforms in state government. And voters generally are supportive of some of those potential reforms, the poll found.

Eighty-four percent would back term limits for lawmakers and 79 percent back term limits for state elected officials; 77 percent support ending the practice of limited liability companies giving unlimited funds to campaigns; 74 percent back allowing initiative and referendum on the ballot; 65 percent support banning full-time employment for the Legislature.

Bigger changes to the state are opposed, however, with only 34 percent supporting limits to collective bargaining and 37 percent supporting revising “forever wild” requirements for the Adirondacks to allow for development. Both are issues that labor unions and environmental groups believe are at stake if a convention is held; voters would have to approve any changes to the constitution developed at a convention.

Meanwhile, Gov. Andrew Cuomo’s approval rating stands at 52 percent to 43 percent, according to the Siena poll among likely voters.

President Trump’s favorability rating among New York voters has improved slightly, but remains only at 31 percent among likely voters.

The poll of 814 likely voters was conducted from Oct. 25 to Oct. 29. It has a margin of error of 3.4 percentage points.

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