A little over a year ago, at President Biden’s urging, congressional democrats passed a sweeping plan to supercharge the production and sale of electric vehicles.Jim Tankersley, who covers economic policy for The Times, explains whether the law is actually working.Guest: Jim Tankersley, an economic policy correspondent for The New York Times.Background reading: President Biden’s 2022 climate act spurred big investments in U.S. battery factories, but it has not similarly boosted E.V. sales.Growth is brisk but slower than expected, causing automakers to question their multibillion-dollar investments in new factories and raising doubts about the effectiveness of federal incentives.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.