Next year, after a series of mergers is completed, just four railroads will control well over 90 percent of all the freight moved by major rail carriers.
Among the annoying challenges facing the middle class is one that will probably go unmentioned in the next presidential campaign: What happens when the robots come for their jobs?
You can get results on the races at CNN.com. Both major parties will be scrutinizing the outcomes of yesterday's votes to help form their strategies for next year's congressional midterm elections.