George W. Bush narrowly defeated Al Gore in the disputed 2000 presidential election. During Bush's presidency, the September 11th terrorist attacks occurred, leading to the U.S. launching a War on Terror. This included the passage of the controversial Patriot Act, establishment of Guantanamo Bay prison, and invasion of Afghanistan to find Osama bin Laden. Despite finding no weapons of mass destruction, Bush also led the U.S. invasion of Iraq in 2003 to depose Saddam Hussein. Bush's presidency saw significant debates over balancing civil liberties and national security in fighting terrorism.