poll source sample size margin of error date democrat % republican %
poll source
sample size
margin of error
date
democrat
%
republican
%
number
number
minimum_number minimum_parsed minimum_day minimum_month minimum_year maximum_number maximum_parsed maximum_day maximum_month maximum_year
number
number
text number number timespan text number text number
rasmussen reports 500 4.5 mar 31, 2008 hillary clinton 36 john mccain 51
which poll source was used the least ?
WDT JJ NN VBD-AUX VBN DT JJS .