The U.S. death toll from the coronavirus topped 200,000 Tuesday, by far the highest in the world, hitting the once-unimaginable threshold six weeks before an election that is certain to be a referendum in part on President Donald Trump’s handling of the crisis. … The number of dead is equivalent to a 9/11 attack every day for 67 days. It is roughly equal to the population of Salt Lake City or Huntsville, Alabama. And it is still climbing. Deaths are running at close to 770 a day on average, and a widely cited model from the University of Washington predicts the U.S. toll will double to 400,000 by the end of the year as schools and colleges reopen and cold weather sets in. A vaccine is unlikely to become widely available until 2021.