Big DUH!

Well this is kind of gloomy: IRS tax revenue falls, along with taxpayer's income

The other deficit driver is government spending, which, the AIER's report says, is the main culprit for the federal budget deficit.

The White House thinks that tax revenue will increase in 2011, thanks in part to the stimulus package, says the report from AIER, an independent economic research institute. But it warns, "Even if that does happen, the administration also projects that government spending will be so much higher each year that large deficits will continue, and the national debt held by the public will double over the next 10 years."