poll source  sample size  margin of error                date         democrat     republican
0          quinnipiac         1697              2.4  mar 19 - 24 , 2008  hillary clinton    john mccain
1          quinnipiac         1697              2.4  mar 19 - 24 , 2008     barack obama    john mccain
2   rasmussen reports          500              4.5     march 11 , 2008     barack obama    john mccain
3   rasmussen reports          500              4.5     march 11 , 2008  hillary clinton    john mccain
4   rasmussen reports          500              4.5   november 7 , 2007  hillary clinton  rudy giuliani
5   rasmussen reports          500              4.5   november 7 , 2007  hillary clinton    john mccain
6   rasmussen reports          500              4.5   november 7 , 2007  hillary clinton    mitt romney
7   rasmussen reports          500              4.5   november 7 , 2007  hillary clinton  fred thompson
8          quinnipiac         1029              3.1    nov 1 - 5 , 2007  hillary clinton  rudy giuliani
9          quinnipiac         1029              3.1    nov 1 - 5 , 2007  hillary clinton    john mccain
10         quinnipiac         1029              3.1    nov 1 - 5 , 2007  hillary clinton    mitt romney
11         quinnipiac         1029              3.1    nov 1 - 5 , 2007  hillary clinton  fred thompson
12         quinnipiac         1029              3.1    nov 1 - 5 , 2007     john edwards  rudy giuliani
13         quinnipiac         1029              3.1    nov 1 - 5 , 2007     barack obama  rudy giuliani
14         quinnipiac         1391              2.6   oct 9 - 15 , 2007  hillary clinton  rudy giuliani
15         quinnipiac         1427              2.6    may 2 - 7 , 2007  hillary clinton  rudy giuliani
16         quinnipiac         1427              2.6    may 2 - 7 , 2007  hillary clinton    john mccain
17         quinnipiac         1427              2.6    may 2 - 7 , 2007  hillary clinton  fred thompson
18         quinnipiac         1427              2.6    may 2 - 7 , 2007     barack obama  rudy giuliani
19         quinnipiac         1427              2.6    may 2 - 7 , 2007     barack obama    john mccain
20         quinnipiac         1427              2.6    may 2 - 7 , 2007     barack obama  fred thompson
21         quinnipiac         1087              3.0   feb 9 - 12 , 2007  hillary clinton  rudy giuliani
22         quinnipiac         1087              3.0   feb 9 - 12 , 2007  hillary clinton    john mccain
23         quinnipiac         1087              3.0   feb 9 - 12 , 2007  hillary clinton    mitt romney
24         quinnipiac         1087              3.0   feb 9 - 12 , 2007       chris dodd    john mccain
25         quinnipiac         1087              3.0   feb 9 - 12 , 2007     john edwards    john mccain
26         quinnipiac         1087              3.0   feb 9 - 12 , 2007     barack obama    john mccain

Table as JSON:
{"poll source":{"0":"quinnipiac","1":"quinnipiac","2":"rasmussen reports","3":"rasmussen reports","4":"rasmussen reports","5":"rasmussen reports","6":"rasmussen reports","7":"rasmussen reports","8":"quinnipiac","9":"quinnipiac","10":"quinnipiac","11":"quinnipiac","12":"quinnipiac","13":"quinnipiac","14":"quinnipiac","15":"quinnipiac","16":"quinnipiac","17":"quinnipiac","18":"quinnipiac","19":"quinnipiac","20":"quinnipiac","21":"quinnipiac","22":"quinnipiac","23":"quinnipiac","24":"quinnipiac","25":"quinnipiac","26":"quinnipiac"},"sample size":{"0":1697,"1":1697,"2":500,"3":500,"4":500,"5":500,"6":500,"7":500,"8":1029,"9":1029,"10":1029,"11":1029,"12":1029,"13":1029,"14":1391,"15":1427,"16":1427,"17":1427,"18":1427,"19":1427,"20":1427,"21":1087,"22":1087,"23":1087,"24":1087,"25":1087,"26":1087},"margin of error":{"0":2.4,"1":2.4,"2":4.5,"3":4.5,"4":4.5,"5":4.5,"6":4.5,"7":4.5,"8":3.1,"9":3.1,"10":3.1,"11":3.1,"12":3.1,"13":3.1,"14":2.6,"15":2.6,"16":2.6,"17":2.6,"18":2.6,"19":2.6,"20":2.6,"21":3.0,"22":3.0,"23":3.0,"24":3.0,"25":3.0,"26":3.0},"date":{"0":"mar 19 - 24 , 2008","1":"mar 19 - 24 , 2008","2":"march 11 , 2008","3":"march 11 , 2008","4":"november 7 , 2007","5":"november 7 , 2007","6":"november 7 , 2007","7":"november 7 , 2007","8":"nov 1 - 5 , 2007","9":"nov 1 - 5 , 2007","10":"nov 1 - 5 , 2007","11":"nov 1 - 5 , 2007","12":"nov 1 - 5 , 2007","13":"nov 1 - 5 , 2007","14":"oct 9 - 15 , 2007","15":"may 2 - 7 , 2007","16":"may 2 - 7 , 2007","17":"may 2 - 7 , 2007","18":"may 2 - 7 , 2007","19":"may 2 - 7 , 2007","20":"may 2 - 7 , 2007","21":"feb 9 - 12 , 2007","22":"feb 9 - 12 , 2007","23":"feb 9 - 12 , 2007","24":"feb 9 - 12 , 2007","25":"feb 9 - 12 , 2007","26":"feb 9 - 12 , 2007"},"democrat":{"0":"hillary clinton","1":"barack obama","2":"barack obama","3":"hillary clinton","4":"hillary clinton","5":"hillary clinton","6":"hillary clinton","7":"hillary clinton","8":"hillary clinton","9":"hillary clinton","10":"hillary clinton","11":"hillary clinton","12":"john edwards","13":"barack obama","14":"hillary clinton","15":"hillary clinton","16":"hillary clinton","17":"hillary clinton","18":"barack obama","19":"barack obama","20":"barack obama","21":"hillary clinton","22":"hillary clinton","23":"hillary clinton","24":"chris dodd","25":"john edwards","26":"barack obama"},"republican":{"0":"john mccain","1":"john mccain","2":"john mccain","3":"john mccain","4":"rudy giuliani","5":"john mccain","6":"mitt romney","7":"fred thompson","8":"rudy giuliani","9":"john mccain","10":"mitt romney","11":"fred thompson","12":"rudy giuliani","13":"rudy giuliani","14":"rudy giuliani","15":"rudy giuliani","16":"john mccain","17":"fred thompson","18":"rudy giuliani","19":"john mccain","20":"fred thompson","21":"rudy giuliani","22":"john mccain","23":"mitt romney","24":"john mccain","25":"john mccain","26":"john mccain"}}