what poll source had the largest sample size?
Quinnipiac
Poll source Date(s)\nadministered Sample\nsize Margin of\nerror Andrew\nCuomo (D) Rob\nAstorino (R) Other Undecided
Siena March 16–20, 2014 813 ± 3.4% 61% 26% — 13%
Marist February 28–March 3, 2014 658 ± 3.8% 65% 25% — 10%
Quinnipiac February 6–10, 2014 1,488 ± 2.5% 58% 24% 2% 16%
Siena January 12–16, 2014 808 ± 3.4% 67% 19% 3% 11%
Quinnipiac November 20–24, 2013 1,337 ± 2.7% 56% 25% 2% 17%
Marist November 18–20, 2013 675 ± 3.8% 65% 23% — 12%
Siena November 11–14, 2013 806 ± 3.5% 63% 24% — 13%
csv/204-csv/481.tsv