Table:
text: United States Senate election in Florida, 2004
Polling
Polling
Poll_Source Dates_administered Sample_size Margin_of_Error Mel_Martinez_R Betty_Castor_D
Zogby International October 31 600 ± 4.0% 46% 46%
Quinnipiac University October 31 1098 ± 3.0% 49% 44%
CNN / USA Today / Gallup October 28 1138 ± 4.0% 46% 48%
Mason Dixon October 26 625 ± 4.0% 47% 46%
New York Times October 23 802 ± 3.0% 44% 47%
Quinnipiac University October 22 944 ± 3.2% 49% 46%
Insider Advantage October 22 400 ± 5.0% 46% 44%
Survey USA October 22 741 ± 3.7% 47% 50%
Miami Herald October 19 800 ± 3.5% 44% 44%
Research 2000 October 18 600 ± 4.0% 48% 48%

Question: What is the largest sample size in the US Senate elections in Florida, 2004, conducted on October 18th?

Question: What is the percentage for Mel Martinez in the 2004 Florida US Senate election when the sample size is 800?