Since the terrorist attack on the United States by an Islamic extremist group in 2001, national security against terrorism and Islamic militant groups has been a primary focus of American domestic security. A Pew Research survey conducted in 2015 found 93% of Republicans view ISIS as a major threat, compared with 79% of Democrats. This is mirrored in the bipartisan support for President Obama’s plan for a military campaign against Islamic militants in Iraq and Syria, with a majority of Republicans (64%) and Democrats (60%) approving of the president’s plan.
ISIS refers to a military-jihadist group in Iraq and Syria that has instated a caliphate as its leader.