By Brandon Gage Herschel Walker, the Republican United States Senate candidate in Georgia whose campaign has been peppered with scandals and defined by his own misrepresentations about his résumé, has been caught in yet another lie, according to a Wednesday report in The Huffington Post. “In September 2011, ESPN was rolling out its new documentary about Herschel Walker — but the man of the hour wouldn’t be at the big premiere because, he said, he had real work to do,” HuffPost recalled. At the time, Walker claimed that he was unavailable because he had to “head back to Arkansas for a sales mee…