Here is a compilation video of President Obama using his odd "middle finger scratch" gesture yesterday when mentioning the name of John Callahan, the mayor of Bethlehem, Pennsylvania, a supporter of Hillary Clinton in the Democratic primary. The video also shows him making the gesture when mentioning Hillary Clinton on April 17, 2008, and when mentioning John McCain on November 3, 2008. The individual videos are also provided . . . . (VIDEOS)