Moncef Slaoui, chief adviser to the Trump administration's Operation Warp Speed program, has sketched out the timetable for when he thinks a COVID-19 vaccine could be ready, at least for some people living in the United States. And Election Day doesn't figure into his forecast. … Slaoui described the progress made by six companies supported by Operation Warp Speed. The two farthest along are Moderna and Pfizer.