Did the Bush administration lie to congress or not?
Democrats, and foreign dictators, think yes, but truthfully no.
Was George Bush telling the truth when he said that the Aluminum tubes that Iraq was importing could be used in centrifuges, which was debunked by the IAEA as well as domestic scientists?
Did Dick Cheney lie when he said that Mohammad Atta met with Iraqi Intelligence on Meet The Press on December 9, 2001? The 9/11 comission report says so. The CIA, FBI, and other intelligence agencies also say so.
Did administration officials, including George Bush and Dick Cheney knowingly repeat information given by Ibn al-Shaykh al-Libi, who the DIA debunked as a false witness? Much of the information given by Ibn al-Shaykh al-Libi was used in Colin Powell's speech, even after the DIA debunked it a year before hand (NYT Nov 6, 2005, "Report Warned Bush Team About Intelligence Doubts")
Did the administration lie when they said Iraq had bioweapons trailers? This was debunked by American scientists. In fact, the CIA told an Austrailian researcher that it was not politically possible to say that the WMD claims were untrue. (Associated Press May 14th 2006: Inspector: Politics stunted 'biotrailer' findings)
Did Donald Rumsfeld lie in Sept. 27, 2002 when he said that the link between Iraq and Al Qeda was "accurate and not debatable."?
Well, OK. He DID have WMD; the chemical weapons he used on the Kurds were given to him. Any biological weapons he had up till that point had turned to harmless substances; VX and Sarin have a 5 year shelf life.