A scatterplot maps Texas counties by voter turnout against the margin of victory in the 2012 and 2018 Senate elections, with circle size scaled to population. Arrows connect each county’s 2012 position to its 2018 position, showing change over time. Built with D3 v5 and jQuery, the visualization uses d3.scaleLinear, d3.axisBottom, and d3.axisLeft, with interactive mouseover events that highlight counties and a dropdown menu to filter selections. Data is loaded from CSV files and rendered as SVG.