On the eve of Melania Trump’s big speech headlining the second night of the Republican National Convention, politics reporter Mary Jordan discusses the first lady’s reputation. Sarah Kaplan explains how genetic analysis of the coronavirus could help us map and control its spread. And Isabelle Khurshudyan on the mass demonstrations that have erupted in Belarus after a hotly contested presidential election.Read more:Melania Trump is about to give her biggest speech in four years. The Trump campaign hopes she can be its secret weapon.Read an excerpt from “The Art of Her Deal”: How Melania Trump blocked Ivanka Trump from encroaching on her domain.Genetic data show how a single superspreading event sent the coronavirus across Massachusetts –– and the nation.In Belarus, one protester describes the last two weeks of protest in the name of political reform.Subscribe to The Washington Post: postreports.com/offer