And the winner is: Gallup has assessed opinion on who did better in most past presidential debates; some of these polls were conducted the night of the debate with pre-recruited samples of debate watchers immediately after it concluded, and some were conducted with more general samples of Americans in the days that followed the debate. Across all of the various debate-reaction polls Gallup has conducted, Romney's 52-point win is the largest Gallup has measured. The prior largest margin was 42 points for Bill Clinton over George H.W. Bush in the 1992 town hall debate. Romney's debate performance is also notable from the standpoint that U.S. debate watchers judged Obama the winner of all three 2008 debates with John McCain.