The graph shows total travel costs for each month.
- Click the checkboxes below the graph to toggle the display of Republican travel, Democratic travel, and total travel.
- Click the text next to the checkboxes to toggle whether the dollar amount for that line displays when moused over.
- Click a year below the graph to zoom to just that year's travel.
- Move your mouse over a point to show the month and dollar amount for that point.
- Click and drag across a portion of the graph to zoom in on that section.
- Click "Show all" in the upper righthand corner of the graph to zoom out.