Kamala Harris was all smiles when she arrived at Joe Biden's former Delaware campaign headquarters on Monday. She was there to lift the spirits of blindsided staffers, who after 15 months of toiling to re-elect the president, suddenly found themselves working for her. 'It is my great honor to have Joe's endorsement in this race,' she boasted to cheers from a crowd who were now on her payroll. But as the assembled readily applauded, some must have harbored private concerns. For, behind the recent public self-branding of Harris as a kindly, jovial 'Momala', she has earned a nasty reputation as...