Yes, I think that your method is correct for my project and it is almost working for me. The only problem that I am facing is that when I am trying to import the geojson file, the polygons are not automatically showing up as components like they did in the State quiz tutorial. Thus, I do not have any polygons in my project and I am receiving an error which states: "Distance to feature cannot accept the following arguments....". I have pasted portions of my code below just to confirm that I have interpreted you correctly. Here is the link that I am using for my geojson file: GeoJSON and KML data for the United States
Thank you for all the help so far!