Biden seeks to boost fuel economy to thwart Trump rollback

The Biden administration wants automakers to raise gas mileage and cut tailpipe pollution between now and model year 2026, and it has won a voluntary commitment Thursday from the industry that electric vehicles will comprise up to half of U.S. sales by the end of the decade.

The moves are big steps toward President Joe Biden’s pledge to cut emissions and battle climate change as he pushes a history-making shift in the U.S. from internal combustion engines to battery-powered vehicles. They also reflect a delicate balance to gain both industry...