(PHOTO CREDIT: GETTY IMAGES) FROM CNN's Jack Cafferty: After hovering around all-time lows in the polls, President Barack Obama is getting a boost in his approval ratings following the killing of Osama bin Laden. A new Gallup poll finds the president's approval rating jumped from 46% to 52% after Sunday's successful raid of the bin … Continue reading Should killing of Osama bin Laden be an issue in '12 presidential race?