MELVILLE, N.Y. - New York Democrats flocked to Long Island for the start of the state party's two-day convention.

Top incumbents Attorney General Eric Schneiderman, Comptroller Tom DiNapoli and Westchester's own Gov. Andrew Cuomo are not facing primary challengers. According to a Quinnipiac poll released Wednesday morning, all three candidates are leading their GOP opponents by double digits.

Gov. Cuomo announced via video that he has selected former Buffalo Rep. Kathy Hochul as his running mate. Hochul is now the first female lieutenant governor candidate on a Democratic ticket in 35 years.

She is also now the only woman running for statewide office among all the major political parties. Democrats say with this piece of the puzzle in place, they are now in full re-election mode.

DiNapoli took several jabs at Republicans during his nomination acceptance speech. Schneiderman was nominated for re-election late Wednesday afternoon, while Cuomo is not expected to take the convention stage until Thursday morning.

State Democrats say they held the convention on Long Island because both major parties expect Suffolk County, which is rich with independent voters, to be a key battleground in the 2014 election season.