Final answer:
President George W. Bush's administration claimed Iraq had WMDs, which led to the invasion of Iraq in 2003. Accusations of the U.S. government providing materials for these weapons are linked to this period, although no direct evidence of such support has been confirmed.
Step-by-step explanation:
The President when the US government was accused of delivering materials to Iraq that could be used for Weapons of Mass Destruction (WMDs) was George W. Bush. In the aftermath of the September 11, 2001 terrorist attacks, President Bush and his administration emphasized the potential threat posed by Iraq under the leadership of Saddam Hussein, claiming Iraq possessed WMDs. During this period, the U.S. government sought to build an international coalition to support the case for invading Iraq, with Secretary of State Colin Powell presenting evidence at the United Nations.
It is important to note that there were also historical instances during the Reagan administration when the United States provided support to Iraq during the Iran-Iraq war. However, this support was related to the geopolitical context of the time and aimed at countering Iranian advances, rather than directly facilitating the creation of WMDs.