From a press release:

The New York State Democratic Presidential Primary Will Be Held on April 19, 2016 and Will Now No Longer Conflict With Passover

Assemblyman Sheldon Silver is pleased to announce today that the New York State Presidential primary will be changed from April 26 to April 19, 2016 and will no longer conflict with the Passover holiday. This announcement follows a campaign by Assemblyman Silver and Assemblyman Charles Lavine, President of the New York Chapter of the National Association of Jewish Legislators, to change the date and make the Presidential primary open and accessible to all voters.

Assemblyman Silver said, “As a New Yorker and a legislator who represents a diverse district with a significant Jewish population it is very important to me that all voters have the opportunity to express their right to vote. Changing the date is a win for democracy that gives so many more New Yorkers the freedom to vote for their next president on Election Day, instead of struggling to fit it in between Passover celebrations with their families.”

Assemblyman Silver began the effort to change the date with Assemblyman Charles Lavine who joined by pledging not to vote for an April 26th date. Legislation will soon be voted on to officially enact the new date.