Pollster API

The Pollster API provides programmatic access to the results of tens of thousands of opinion polls we've collected since 2004 as well as our estimates of the current opinion on various candidates and topics.

This API is for developers who want to incorporate our data into their own applications. To embed a chart on your site or download poll results as a spreadsheet, follow the links below each chart.

API Summary

Base URI http://elections.huffingtonpost.com/pollster/api
HTTP method GET
Response formats JSON (.json), XML (.xml), JSONP (.json?callback=pollsterCallback)

Methods

  • Charts - returns a list of the charts available through the Pollster API
  • Chart - returns information about a particular chart, including historical estimates
  • Polls - returns a list of all polls, filtered by geography, chart or topic

Charts

Get a list of the charts available through the Pollster API.

URL

http://elections.huffingtonpost.com/pollster/api/charts

Parameters

Parameter Sample values
state Only include charts from a single state ('US' will return all national charts) MA, NY, CA, US
topic Only include charts related to a specific topic obama-job-approval, favorable-ratings, 2016-president-gop-primary, 2016-president-dem-primary, 2016-president, 2014-senate-primary, 2014-senate-gop-primary, 2014-senate-dem-primary, 2014-senate, 2014-house, 2014-governor-gop-primary, 2014-governor-dem-primary, 2014-governor, 2013-senate-gop-primary, 2013-senate-dem-primary, 2013-senate, 2013-house, 2013-governor, 2012-senate-gop-primary, 2012-senate-dem-primary, 2012-senate, 2012-president-gop-primary, 2012-president, 2012-house, 2012-governor-gop-primary, 2012-governor-dem-primary, 2012-governor
showall Include charts for races that were once possible but didn't happen (e.g. Gingrich vs. Obama 2012) true

Sample Request and Response

http://elections.huffingtonpost.com/pollster/api/charts
[
  {
    "title":"2012 Iowa GOP Primary",
    "slug":"2012-iowa-gop-primary",
    "topic":"2012-gop-primary",
    "state":"IA",
    "poll_count":65,
    "last_updated":"2012-01-02T17:08:44Z",
    "url":"http://elections.huffingtonpost.com/pollster/2012-iowa-gop-primary",
    "estimates":[
    {
      "choice":"Paul",
      "value":21.3
    },
    {
      "choice":"Other",
      "value":0.9
    },
    {
      "choice":"Romney",
      "value":22.5
    },
    {
      "choice":"Perry",
      "value":11.1
    },
    {
      "choice":"Undecided",
      "value":5.9
    },
    {
      "choice":"Bachmann",
      "value":8.3
    },
    {
      "choice":"Santorum",
      "value":15.9
    },
    {
      "choice":"Gingrich",
      "value":12.6
    },
    {
      "choice":"Huntsman",
      "value":3.7
    }
    ]
  },
  {
    "title":"2012 New Hampshire GOP Primary",
    "slug":"2012-new-hampshire-gop-primary",
    "topic":"2012-gop-primary",
    "state":"NH",
    "poll_count":55,
    "last_updated":"2012-01-10T13:49:33Z",
    "url":"http://elections.huffingtonpost.com/pollster/2012-new-hampshire-gop-primary",
    "estimates":[
    {
      "choice":"Perry",
      "value":1.0
    },
    {
      "choice":"Paul",
      "value":18.8
    },
    {
      "choice":"Romney",
      "value":39.6
    },
    {
      "choice":"Santorum",
      "value":11.0
    },
    {
      "choice":"Huntsman",
      "value":11.9
    },
    {
      "choice":"Gingrich",
      "value":9.2
    },
    {
      "choice":"Undecided",
      "value":6.9
    },
    {
      "choice":"Other",
      "value":1.6
    }
    ]
  }
]

Chart

Returns a single chart, specified by a chart slug. The response includes both current and past estimates for each choice in the chart.

URL

http://elections.huffingtonpost.com/pollster/api/charts/SLUG

Sample Request and Response

http://elections.huffingtonpost.com/pollster/api/charts/2012-general-election-romney-vs-obama.json
{
  "title":"2012 General Election: Romney vs. Obama",
  "slug":"2012-general-election-romney-vs-obama",
  "topic":"2012-president",
  "state":"US",
  "poll_count":341,
  "last_updated":"2012-06-29T17:31:14Z",
  "url":"http://elections.huffingtonpost.com/pollster/2012-general-election-romney-vs-obama",
  "estimates":[
  {
    "choice":"Romney",
    "value":44.5
  },
  {
    "choice":"Obama",
    "value":46.6
  },
  {
    "choice":"Other",
    "value":4.0
  },
  {
    "choice":"Undecided",
    "value":6.1
  }
  ],
  "estimates_by_date":[
  {
    "date":"2012-06-28",
    "estimates":[
    {
      "choice":"Romney",
      "value":44.5
    },
    {
      "choice":"Obama",
      "value":46.6
    }
    ]
  },
  {
    "date":"2012-06-27",
    "estimates":[
    {
      "choice":"Romney",
      "value":44.5
    },
    {
      "choice":"Obama",
      "value":46.5
    },
    {
      "choice":"Other",
      "value":4.0
    },
    {
      "choice":"Undecided",
      "value":6.1
    }
    ]
  },
  {
    "date":"2012-05-29",
    "estimates":[
    {
      "choice":"Romney",
      "value":44.3
    },
    {
      "choice":"Obama",
      "value":46.6
    }
    ]
  }
  ]
}

Polls

Get a list of polls available through the Pollster API. The list can be filtered to show only polls related to a specific chart, state or topic.

URL

http://elections.huffingtonpost.com/pollster/api/polls

Parameters

Parameter Sample values
page Polls are listed in pages of 10 2,3,4
chart Only list polls related to a specific chart (The name of the chart is the slug attribute found in the response to the Charts method) obama-job-approval, 2012-general-election-romney-vs-obama
state Only list polls from a specific state ('US' will return all national polls) MA, NY, CA, US
topic Only list polls related to the specified topic obama-job-approval, favorable-ratings, 2016-president-gop-primary, 2016-president-dem-primary, 2016-president, 2014-senate-primary, 2014-senate-gop-primary, 2014-senate-dem-primary, 2014-senate, 2014-house, 2014-governor-gop-primary, 2014-governor-dem-primary, 2014-governor, 2013-senate-gop-primary, 2013-senate-dem-primary, 2013-senate, 2013-house, 2013-governor, 2012-senate-gop-primary, 2012-senate-dem-primary, 2012-senate, 2012-president-gop-primary, 2012-president, 2012-house, 2012-governor-gop-primary, 2012-governor-dem-primary, 2012-governor
before Only list polls that ended on or before the specified date 2012-07-01, 2010-01-01
after Only list polls that ended on or after the specified date 2012-04-21, 2010-12-31
sort Sort polls by last updated time (Useful for seeing what has changed since the last time you looked) updated
showall Include polls for races that were once possible but didn't happen (e.g. Gingrich vs. Obama 2012) true

Sample Request and Response

http://elections.huffingtonpost.com/pollster/api/polls.json?page=2
[
  {
    "id":14288,
    "pollster":"Rasmussen",
    "start_date":"2012-07-09",
    "end_date":"2012-07-09",
    "method":"Automated Phone",
    "source":"http://www.rasmussenreports.com/public_content/politics/elections/election_2012/election_2012_presidential_election/florida/election_2012_florida_president",
    "last_updated":"2012-07-10T17:14:03Z",
    "survey_houses":[
    {
      "name":"Rasmussen Reports"
    }
    ],
    "sponsors":[

    ],
    "questions":[
    {
      "name":"2012 Florida President: Romney vs. Obama",
      "chart":"2012-florida-president-romney-vs-obama",
      "topic":"2012-president",
      "state":"FL",
      "subpopulations":[
      {
        "name":"Likely Voters",
        "observations":500,
        "margin_of_error":4.5,
        "responses":[
        {
          "choice":"Obama",
          "value":45,
          "first_name":"Barack",
          "last_name":"Obama",
          "party":"Dem",
          "incumbent":true
        },
        {
          "choice":"Romney",
          "value":46,
          "first_name":"Mitt",
          "last_name":"Romney",
          "party":"Rep",
          "incumbent":false
        },
        {
          "choice":"Other",
          "value":5,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Undecided",
          "value":4,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    },
    {
      "name":"Florida: Obama Job Approval",
      "chart":"florida-obama-job-approval",
      "topic":"obama-job-approval",
      "state":"FL",
      "subpopulations":[
      {
        "name":"Likely Voters",
        "observations":500,
        "margin_of_error":4.5,
        "responses":[
        {
          "choice":"Strongly Approve",
          "value":28,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Somewhat Approve",
          "value":21,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Somewhat Disappprove",
          "value":6,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Strongly Disappprove",
          "value":44,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Undecided",
          "value":1,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    }
    ]
  },
  {
    "id":14304,
    "pollster":"YouGov/Economist",
    "start_date":"2012-07-07",
    "end_date":"2012-07-09",
    "method":"Internet",
    "source":"http://cdn.yougov.com/cumulus_uploads/document/qmv1u9m8r1/econToplines.pdf",
    "last_updated":"2012-07-11T17:07:24Z",
    "survey_houses":[
    {
      "name":"YouGov"
    }
    ],
    "sponsors":[
    {
      "name":"Economist"
    }
    ],
    "questions":[
    {
      "name":"US Right Direction Wrong Track",
      "chart":"us-right-direction-wrong-track",
      "topic":"",
      "state":"US",
      "subpopulations":[
      {
        "name":"Adults",
        "observations":1000,
        "margin_of_error":4.2,
        "responses":[
        {
          "choice":"Right Direction",
          "value":27,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Wrong Track",
          "value":57,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Undecided",
          "value":16,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    },
    {
      "name":"Barack Obama Favorable Rating",
      "chart":"obama-favorable-rating",
      "topic":"",
      "state":"US",
      "subpopulations":[
      {
        "name":"Adults",
        "observations":1000,
        "margin_of_error":4.2,
        "responses":[
        {
          "choice":"Very Favorable",
          "value":26,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Somewhat Favorable",
          "value":19,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Somewhat Unfavorable",
          "value":10,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Very Unfavorable",
          "value":40,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Undecided",
          "value":5,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    },
    {
      "name":"Mitt Romney Favorable Rating",
      "chart":"mitt-romney-favorability",
      "topic":"",
      "state":"US",
      "subpopulations":[
      {
        "name":"Adults",
        "observations":1000,
        "margin_of_error":4.2,
        "responses":[
        {
          "choice":"Very Favorable",
          "value":16,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Somewhat Favorable",
          "value":24,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Somewhat Unfavorable",
          "value":15,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Very Unfavorable",
          "value":34,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Undecided",
          "value":11,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    },
    {
      "name":"Obama Job Approval",
      "chart":"obama-job-approval",
      "topic":"obama-job-approval",
      "state":"US",
      "subpopulations":[
      {
        "name":"Adults",
        "observations":1000,
        "margin_of_error":4.2,
        "responses":[
        {
          "choice":"Approve",
          "value":43,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Disapprove",
          "value":51,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Undecided",
          "value":6,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    },
    {
      "name":"Obama Job Approval - Economy",
      "chart":"obama-job-approval-economy",
      "topic":"obama-job-approval",
      "state":"US",
      "subpopulations":[
      {
        "name":"Adults",
        "observations":1000,
        "margin_of_error":4.2,
        "responses":[
        {
          "choice":"Strongly Approve",
          "value":14,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Approve",
          "value":19,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Disapprove",
          "value":16,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Strongly Disapprove",
          "value":41,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Undecided",
          "value":11,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    },
    {
      "name":"Obama Job Approval - Health",
      "chart":"obama-job-approval-health",
      "topic":"obama-job-approval",
      "state":"US",
      "subpopulations":[
      {
        "name":"Adults",
        "observations":1000,
        "margin_of_error":4.2,
        "responses":[
        {
          "choice":"Strongly Approve",
          "value":21,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Approve",
          "value":18,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Disapprove",
          "value":10,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Strongly Disapprove",
          "value":42,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Undecided",
          "value":8,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    },
    {
      "name":"Congress Job Approval",
      "chart":"congress-job-approval",
      "topic":null,
      "state":"US",
      "subpopulations":[
      {
        "name":"Adults",
        "observations":1000,
        "margin_of_error":4.2,
        "responses":[
        {
          "choice":"Approve",
          "value":8,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Disapprove",
          "value":67,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Neither",
          "value":17,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Undecided",
          "value":8,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    },
    {
      "name":"2012 General Election: Romney vs. Obama",
      "chart":"2012-general-election-romney-vs-obama",
      "topic":"2012-president",
      "state":"US",
      "subpopulations":[
      {
        "name":"Registered Voters",
        "observations":null,
        "margin_of_error":null,
        "responses":[
        {
          "choice":"Obama",
          "value":43,
          "first_name":"Barack",
          "last_name":"Obama",
          "party":"Dem",
          "incumbent":true
        },
        {
          "choice":"Romney",
          "value":44,
          "first_name":"Mitt",
          "last_name":"Romney",
          "party":"Rep",
          "incumbent":false
        },
        {
          "choice":"Other",
          "value":6,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Undecided",
          "value":8,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    },
    {
      "name":"2012 National House Race",
      "chart":"2012-national-house-race",
      "topic":null,
      "state":"US",
      "subpopulations":[
      {
        "name":"Adults",
        "observations":1000,
        "margin_of_error":4.2,
        "responses":[
        {
          "choice":"Democrat",
          "value":37,
          "first_name":null,
          "last_name":null,
          "party":"Dem",
          "incumbent":false
        },
        {
          "choice":"Republican",
          "value":33,
          "first_name":null,
          "last_name":null,
          "party":"Rep",
          "incumbent":false
        },
        {
          "choice":"Not Voting",
          "value":11,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Other",
          "value":2,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Undecided",
          "value":18,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    }
    ]
  },
  {
    "id":14289,
    "pollster":"Gallup",
    "start_date":"2012-07-07",
    "end_date":"2012-07-09",
    "method":"Phone",
    "source":"http://www.gallup.com/poll/113980/Gallup-Daily-Obama-Job-Approval.aspx",
    "last_updated":"2012-07-10T17:17:48Z",
    "survey_houses":[
    {
      "name":"Gallup Poll"
    }
    ],
    "sponsors":[

    ],
    "questions":[
    {
      "name":"Obama Job Approval",
      "chart":"obama-job-approval",
      "topic":"obama-job-approval",
      "state":"US",
      "subpopulations":[
      {
        "name":"Adults",
        "observations":1500,
        "margin_of_error":3.0,
        "responses":[
        {
          "choice":"Approve",
          "value":44,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Disapprove",
          "value":47,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    }
    ]
  },
  {
    "id":14284,
    "pollster":"Rasmussen",
    "start_date":"2012-07-07",
    "end_date":"2012-07-09",
    "method":"Automated Phone",
    "source":"http://www.rasmussenreports.com/public_content/politics/obama_administration/obama_approval_index_history",
    "last_updated":"2012-07-10T14:15:08Z",
    "survey_houses":[
    {
      "name":"Rasmussen Reports"
    }
    ],
    "sponsors":[

    ],
    "questions":[
    {
      "name":"Obama Job Approval",
      "chart":"obama-job-approval",
      "topic":"obama-job-approval",
      "state":"US",
      "subpopulations":[
      {
        "name":"Likely Voters",
        "observations":1500,
        "margin_of_error":3.0,
        "responses":[
        {
          "choice":"Approve",
          "value":45,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        },
        {
          "choice":"Disapprove",
          "value":53,
          "first_name":null,
          "last_name":null,
          "party":null,
          "incumbent":null
        }
        ]
      }
      ]
    }
    ]
  },
  {
    "id":14283,
    "pollster":"Rasmussen",
    "start_date":"2012-07-07",
    "end_date":"2012-07-09",
    "method":"Automated Phone",
    "source":"http://www.rasmussenreports.com/public_content/archive/2012_presidential_election_matchups2",
    "last_updated":"2012-07-10T14:14:57Z",
    "survey_houses":[
    {
      "name":"Rasmussen Reports"
    }
    ],
    "sponsors":[

    ],
    "questions":[
    {
      "name":"2012 General Election: Romney vs. Obama",
      "chart":"2012-general-election-romney-vs-obama",
      "topic":"2012-president",
      "state":"US",
      "subpopulations":[
      {
        "name":"Likely Voters",
        "observations":1500,
        "margin_of_error":3.0,
        "responses":[
        {
          "choice":"Obama",
          "value":44,
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    "id":14290,
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