This bar chart displays the number of U.S. Supreme Court cases from 2018 to 2024 grouped by issue area, with issue names mapped from numeric codes and bars sorted in descending order. It uses d3.csv to load the data and d3.rollups to aggregate counts per issue. The visualization employs d3.scaleBand for the x-axis, d3.scaleLinear for the y-axis, and SVG rectangles for bars with hover effects. Gridlines, value labels, and rotated axis labels are added via d3.axisBottom, d3.axisLeft, and d3.selectAll. The data is sourced from a GitHub gist CSV file.