Uber is losing ground in the United States, its biggest market, to a rival once written off as a bit player, as the ride-hailing company grapples with a series of crises that includes the temporary ...

Lyft and Baidu plan to start service early next year, joining Uber and Momenta in using electric cars from China, which are the least expensive even with tariffs. By Keith Bradsher Keith Bradsher, who ...