The chart shows the income growth for differing income classes: one line for Republican presidents, one for Democrats. Income growth is lower when Republicans rule vs Democrats. The growth is sharply less equitable when Republicans rule than Democrats. There is a slight shift toward lower income groups when Democrats rule.
This chart re-enforces the point highlighted by the Vote View work, i.e. that the primary divide between the two parties is economic issues; with the Republicans laboring on behalf of large economic entities.
Don’t ever forget this chart. Don’t ever pretend it’s not the single most fundamental issue in American politics. Don’t tolerate diversions, this is it. It’s not about war. It’s not about race. It’s not about religion. It’s about who gets the spoils of economic growth. One side is fighting a class war and the other side is not.
More here, and here.