New Yorkers have rejected a measure calling for a constitutional convention. 

Every 20 years, voters have the opportunity to choose whether the state Constitution should be amended or changed.

Unions, environmental groups, Planned Parenthood and officials from both parties had urged opposition. They warned that deep-pocketed special interests could use a convention to undermine existing constitutional rights and noted that the constitution can already be amended through voter referendum.

Supporters argued a convention would provide a chance to address chronic corruption and porous campaign finance rules while strengthening protections for education, health care and the environment.

Voters also approved Proposal 2, which strips pensions of officials convicted of corruption.