Income inequality, part 2.

From Timothy Noah's series in Slate (again, my emphasis):

Another compelling reason to focus on taxation is that income-tax policy has changed very dramatically during the last 30 years. Before Ronald Reagan's election in 1980, the top income tax bracket stood at or above 70 percent, where it had been since the Great Depression. (In the 1950s and the Mad Men early 1960s, the top bracket exceeded 90 percent!) Throughout the Great Compression, as the economy boomed and income inequality dwindled, the top bracket resided at a level that even most Democrats would today call confiscatory. Reagan dropped the top bracket from 70 percent to 50 percent, and eventually pushed it all the way down to 28 percent. Since then, it has hovered between 30 percent and 40 percent. If President Obama lets George W. Bush's 2001 tax cut expire for families earning more than $250,000, as he's expected to do, Tea Partiers will call him a Bolshevik. But at a whisker under 40 percent (up from 35), the top bracket would remain 30 to 50 percentage points below what it was under Presidents Eisenhower, Nixon, and Ford. That's how much Reagan changed the debate.