Brazil’s left reinvented the right’s online playbook. It helped Lula win

For three weeks in October, Veridiana Cunha became a so-called “soldier” for a digital army fighting to reelect Brazil’s leftist President Luiz Inácio Lula da Silva. Every few minutes, the 48-year-old would interrupt her day job in São Paulo as a copy editor and check WhatsApp for new instructions. She even reactivated an Instagram account …