SPECTRUM NEWS VIDEO: Governor Andrew Cuomo appears to be growing his lead in the Democratic primary and holding off his Republican challenger, according to this month's Siena poll. The poll shows Cuomo leading actress turned activist Cynthia Nixon 61-26 among Democrats, and leading Dutchess County Executive Marc Molinaro 56-37 among all likely voters. Pollster Steve Greenberg shares some insight into how the poll was conducted, and what it tells us about the campaigns.