President Trump has turned to a French virologist with a history of criticizing climate science to offer the world hope amid the novel coronavirus pandemic. Last week, Trump tweeted that the combination of two medicines could dramatically alter the often deadly course of COVID-19. "HYDROXYCHLOROQUINE & AZITHROMYCIN, taken together, have a real chance to be one of the biggest game changers in the history of medicine," Trump wrote. He then cited a study published in the International Journal of Antimicrobial Agents that afforded little time for peer review. Trump's optimism comes from a small study of about 40 COVID-19 patients...