Voter Perceptions

This website provides information about the Voter Perception data created in Hassell, Heseltine and Reuning (2025) and then further expanded here. This data is based on C/CES survey data. The actual data is available at the Harvard Dataverse, along with a crosswalk that connects the perception scores to DIME and Nominate data. In order to help anyone interested in the data the site includes an (overly) detailed explanation of the methodology used.

Plot.plot({
  className: "plot",
  color: {
    legend: true,
    domain: ["Democrat", "Independent", "Republican"],
    range: ["#083a90", "#06be37", "#e81b23"]
  },
  marks: [
    Plot.axisY({
      label: "Perceived Ideology",
      labelAnchor: "center", 
      labelArrow: false}),
    Plot.axisY({
      label: "Conservative", 
      labelAnchor: "top"}),  
    Plot.axisY({
      label: "Liberal", 
      labelAnchor: "bottom",
      labelArrow: "down"}),  
    Plot.axisX({
        label: "Year",
        labelAnchor: "center",
        labelArrow: false
    }),
    Plot.gridY({stroke: "black", strokeOpacity: 0.2}),
    Plot.gridX({stroke: "black", strokeOpacity: 0.2}),
    Plot.dot(transpose(plot_data), 
    {
      filter: (d) => chamber.includes(d.chamber) && status.includes(d.Incumbent),
      x: "year", 
      y: "mean",
      z: "bonica_rid",
      fill: "Party",
      channels: {
        Name: "Candidate",
        "Leg Ideo": "nominate_dim1", 
        "Voter Ideo": "mean", 
        "Chamber": "chamber"

      },
      tip: {
        format: {
          y: false,
          x: false
        }
      }
      }),
    Plot.lineY(transpose(plot_data), 
    {
      filter: (d) => chamber.includes(d.chamber) && status.includes(d.Incumbent),
      x: "year", 
      y: "mean",
      z: "bonica_rid",
      stroke: "Party"
      })
  ]
  }
)

viewof chamber = Inputs.checkbox(["House","Senate"], {label: "Chamber", value: ["House","Senate"]})
viewof status = Inputs.checkbox(["Incumbent","Challenger"], {label: "Chamber", value: ["Incumbent","Challenger"]})