First, read this article: http://news.yahoo.com/s/nm/20080605/pl_nm/iraq_usa _intelligence_dc
This excerpt sums it all up tidily:
WASHINGTON (Reuters) - President George W. Bush and his top policymakers misstated Saddam Hussein's links to terrorism and ignored doubts among intelligence agencies about Iraq's arms programs as they made a case for war, the Senate intelligence committee reported on Thursday.
The report shows an administration that "led the nation to war on false premises," said the committee's Democratic Chairman, Sen. John Rockefeller of West Virginia. Several Republicans on the committee protested its findings as a "partisan exercise."
So... we impeach Clinton for diddling around with an intern and lying about it, but Bush faces nothing for deliberately leading us into war on false pretenses?