This visualization maps the highest-paid public employee in each U.S. state, with a circle positioned over the state’s centroid whose size encodes the salary amount. A choropleth background shades states by salary range, while tooltips reveal the employee’s name, role, and employer. The code uses `d3.forceSimulation` for label placement, `d3.geoPath` to render state boundaries, and `d3.scaleSqrt` for circle radii, reading the salary data from the provided TSV file.