Washington is teeing up "the rich" for a big tax hike next year, as a way to make them "pay their fair share." Well, the latest IRS data have arrived on who paid what share of income taxes in 2006, and it's going to be hard for the rich to pay any more than they already do. The data show that the 2003 Bush tax cuts caused what may be the biggest increase in tax payments by the rich in American history.

The nearby chart shows that the top 1% of taxpayers, those who earn above $388,806, paid 40% of all income taxes in 2006,...