Turner decided to seek Gillibrand's Senate seat after a federal magistrate drew a new congressional map that carves up his already Democratic-leaning district among other districts in Brooklyn, Queens and Nassau counties. President Obama's presence at the top of the ticket is likely to help Gillibrand in the Empire State: The president leads former Massachusetts Gov. Mitt Romney, 56 percent to 33 percent, according to the poll. The Quinnipiac poll was conducted March 28-April 2, surveying 1,597 registered voters, for a margin of error of plus-or-minus 2.5 percentage points. There were 372 likely voters in the GOP presidential primary, for a margin of error of plus-or-minus 5.1 percent.