<This isn't about taxes. It's about whether a supply-side stimulus will accomplish its avowed purpose of stimulating the economy.

Sigh. Okay, back to the utilitarian argument:

Kennedy's across-the-board tax cuts increased total revenues.

His tax cut, including a reduction in the top marginal rate to 71% from 91%, boosted revenues by one-third, raised the share of total taxes paid by the wealthy to more than 15% from less than 12%, and grew the economy by 42%.

Reagan's across-the-board tax cuts increased total revenues.

Reagan dropped the top marginal rate to 50% from 70%, cut the capital-gains tax rate, and indexed tax brackets to inflation. Over the next eight years, income-tax revenues jumped 56%, economic growth averaged 3% each year (compared with 2.1% in the previous eight years), and unemployment and poverty rates declined.

Both of these, as you can see, involved a considerable "tax cut for the rich."

There is no reason to believe that Bush's tax cuts, which are actually somewhat sedate compared to Kennedy's, won't do the same thing.

Unless, of course, the Democratic Party doesn't want the economy to improve in the next two years...