It is one of the most unfortunate political idioms around. As a cat lover, I genuinely despise the metaphor of a "dead cat bounce" in describing the transitory nature of a politician's uptick in the polls.In the case of President Obama's increase in approval rating following the assassination of Osama bin Laden, it is, nevertheless, apropos of exactly what has transpired.Hotline on Call: The bump President Obama received after the killing of Osama bin Laden more than two weeks ago in Pakistan has vanished completely, according to the latest Gallup Tracking poll released Monday.Obama's approval rating is now at 46 percent, equal to his approval rating in the last tracking poll conducted before Obama addressed Americans late on May 1 and informed them of bin Laden's death. Forty-four percent of Americans now disapprove of the job Obama is doing as president.According to the Gallup poll, Obama's approval rating crested at 52 percent after the bin Laden killing. His disapproval...(Read Full Post)