Albany, N.Y. - A poll released as New York state Democrats kick off their nominating convention shows Gov. Andrew Cuomo retaining a commanding lead over Republican candidate Rob Astorino.

A Quinnipiac University poll released Wednesday finds Cuomo with a 57 percent to 28 percent lead over Astorino, the Westchester County executive. In an interview with Newsradio 570 WSYR's Joe Galuski Astorino says he is not worried about the gap.

The poll shows a more liberal candidate running on the Working Families Party line would siphon support from the first-term governor, dropping Cuomo's lead over Astorino to 37 percent to 24 percent.

Liberal activists have been unhappy with Cuomo's business-friendly election-year budget, but no obvious candidate has emerged to take the governor on from his left. 

The telephone poll of 1,129 New York state voters was conducted May 14-19 and has a margin of error of 2.9 percentage points.