Saddam Hussein had a weapons of mass destruction program before the Iraq War
Saddam Hussein never restarted Iraq's WMD programs after the 1991 Gulf War
Saddam never reconstituted his WMD programs after the Gulf War devastated them in 1991. While inspections after the Iraq war found remnants of those weapons, it did not find new ones.
In 2004, the CIA's Iraq Survey Group (ISG) released a report that found that Iraq "ended the nuclear program in 1991 following the Gulf war. ISG found no evidence to suggest concerted efforts to restart the program." The report further stated, "While a small number of old, abandoned chemical munitions have been discovered, ISG judges that Iraq unilaterally destroyed its undeclared chemical weapons stockpile in 1991."
The ISG also concluded that after 1995, Iraq "abandoned its existing [biological warfare] program in the belief that it constituted a potential embarrassment, whose discovery would undercut Baghdad's ability to reach its overarching goal of obtaining relief from UN sanctions." The report stated that Iraq appeared to have destroyed its undeclared stocks of biological warfare-related weapons in 1991 and 1992.