Double post, but the Village Voice put out a primer on the arguments for and against the Convention.
Though a July Siena College poll found that 47 percent of New Yorkers backed a convention, with only 34 percent opposed, most elected officials and interest groups on both sides of the aisle want the ballot initiative defeated in November. (More on that below.) Those in favor include the good government group Citizens Union; Bill Samuels, a prominent liberal activist and fundraiser; Evan Davis, a former counsel for Mario Cuomo; a group of Women’s Marchers who are hoping a convention could enshrine abortion rights in the state constitution ahead of any Trump attempt to weaken Roe v. Wade; and the New York State Bar Association.
The elder Cuomo supported holding a convention, though his fellow governor son, Andrew, has been noncommittal. The arguments for a convention boil down to being offered a rare chance to enact sweeping change without grinding through a deeply flawed legislative process. The New York State Constitution is an old, unwieldy document — the length of a short novel, at fifty thousand words — that has not been updated since 1938.
Backers of a constitutional convention are largely liberal, though the Republican minority leader of the state assembly, Brian Kolb, also favors holding one. Samuels has spoken about adding a new bill of rights to the constitution — rights to affordable higher education, clean air and water, healthcare, equitable funding for schools — that would make New York a much more progressive place.
Opponents are much easier to find. The Republican majority leader of the state senate, John Flanagan, and the Democratic Speaker of the Assembly, Carl Heastie, are against holding a constitutional convention. So are Mayor Bill de Blasio, State Senator Jeff Klein — the leader of the Independent Democratic Conference — and most other politicians in New York State.
Their opposition, in part, is driven by the strenuous and united front against a convention led by the state’s major unions, who fear the loss of state protections for labor rights. They are set to outspend and possibly outmaneuver Con Con. They have formed a group, New Yorkers Against Corruption, to harness this energy and money.
Conservatives see much to lose from a Con Con, too. Guns-rights groups and the New York State Conservative Party, formed originally to push Republicans to the right, have joined New Yorkers Against Corruption, out of fear that progressive interests would steer New York too far left.
One argument made against a convention is that the delegates will end up being elected officials or lobbyists determined to protect the status quo, as happened in 1967. With a convention likely to occur during the 2019 legislative session, state lawmakers might be deterred from serving as delegates alongside their regular Albany duties.
The more significant argument animating opposition is the potential loss of strong labor protections baked into a constitution last written in 1938, when organized labor was on the rise. Pension obligations could be wiped away. Liberal opponents of a convention warn that right-wing billionaires like the Koch brothers and Robert Mercer, the Donald Trump backer and Breitbart funder, could hijack the process by spending millions to elect fiercely anti-union delegates.
There's more in the article, but it looks like there's literally people on both sides who want and don't want it.