This choropleth map displays the 2022 unemployment rate for each U.S. state, with a blue sequential color scale indicating higher rates. It uses d3.geoPath with a d3.geoMercator projection to render state boundaries from a TopoJSON file, while a threshold scale maps unemployment percentages to d3.schemeBlues. Hovering over a state changes its fill to red via CSS. Data comes from a CSV file joined to state names, and tooltips show the exact rate per state.