example GeoJSON

example-geojson.json

[
  {
      "type": "Feature",
      "properties": {
          "party": "Republican"
      },
      "geometry": {
          "type": "Polygon",
          "coordinates": [
              [
                  [-104.05, 48.99],
                  [-97.22, 48.98],
                  [-96.58, 45.94],
                  [-104.03, 45.94],
                  [-104.05, 48.99]
              ]
          ]
      }
  },
  {
      "type": "Feature",
      "properties": {
          "party": "Democrat"
      },
      "geometry": {
          "type": "Polygon",
          "coordinates": [
              [
                  [-109.05, 41.0],
                  [-102.06, 40.99],
                  [-102.03, 36.99],
                  [-109.04, 36.99],
                  [-109.05, 41.0]
              ]
          ]
      }
  }
]