A multi-series line chart displays voting trends over time, comparing Democrat, Republican, and Independent vote counts. Three colored lines, blue, red, and green, trace the data across the years, with gridlines and labeled axes for readability. The visualization uses D3 v7 (d3.csv, d3.line, d3.scaleLinear, d3.axisBottom, d3.axisLeft) to load CSV data from a GitHub gist and render the chart as SVG elements. A legend identifies each party line for the viewer.