Los Angeles (AFP) – A hugely popular web poll to find the fattest bear in an Alaskan national park has become the target of rampant ballot stuffing, according to organizers who said they had pounced to protect US democracy from another hammer blow. With the country’s political class obsessing over election integrity, the annual Fat Bear Week poll seemed like the perfect example of a free and fair ballot. But even this model of democratic probity appeared to have been sullied after a spam campaign to elevate Bear 435 over Bear 747, in a crucial semifinal head-to-head to determine which creature…