President Trump and the Republican Party kick off their national convention today to formally nominate the president for re-election and make their case to the nation. Also, the Food and Drug Administration has issued emergency use authorization to treat hospitalized COVID-19 patients with convalescent plasma from people who have recovered from the virus. And, police officers in Kenosha, Wis., shot a Black man multiple times as he tried to get into a vehicle in an incident caught on video.