An RNN-TV and Siena Institute Research poll released tonight shows Andy Spano leading Rob Astorino 48 percent to 41 percent in the county executives’s race. That’s a sevne percentage point spread.

But the good news for Astorinos is that leave 11 percent of the voters up for grabs. The poll has 4.5 percent margin of error, plus or minus.

Here’s the whole press release from Andrew Whitman of RNN:

RNN Television (Regional News Network) and the Siena Research Institute have released the results of the only public poll in the race for Westchester County Executive, and Westchester County District Attorney.

The results were first made public on the network’s news/talk/opinion program Richard French Live Thursday night at 7pm.

The results in the County Executive race are particularly revealing, in that the lead is just 7 points in a county where Democrats hold a huge registration advantage (D:  46.6%; R: 25.5%), and where Spano defeated Astorino by more than 16 points in 2005.

Other areas of note within the poll:  Spano, a 3-term incumbent, leads despite a high unfavorable rating (46%); Spano’s favorable/unfavorable split is even more pronounced among unaffiliated voters (34% favorable/60% unfavorable; unaffiliated voters make up 22.2% of the electorate in Westchester County); Astorino is within striking distance, even though nearly half of those polled (1/3 of all Republicans, as well) say they still don’t know enough about him to form an opinion.

In the DA’s race, incumbent Janet DFiore (D) remains in solid shape for re-election, polling at 52% against® Dan Schorr’s 21% and (WF/I) Tony Castro’s 14%.

Complete results (including polling on some specific issues) as well as demographic breakdowns are attached.

For any additional information or comment, please feel free to contact RNN as listed below.