A CNN/Opinion Research Corporation Poll conducted September 1–2, 2010, revisited this question "As you may know, the US. sent 20,000 combat troops to Iraq in 2007 in what was called a surge. Based on what you have read or heard, do you think that surge of U.S. troops to Iraq was a success or a failure?" 60% responded as success, 33% failure and 7% depends or unsure.[117]