To show shifts in net support for the president, the New York Times used a U-turn metaphor. The x-axis represents net support. The arrows start in 2020, move higher in 2024, and then turn back in 2026.
The alternative, more standard chart choices, such as a dot plot or bar chart, would have worked fine, but this approach gets to the point better.
Visualize This: The FlowingData Guide to Design, Visualization, and Statistics (2nd Edition)
