A report by Nathan Anderson, founder of Hindenburg Research, alleged improprieties that sent the electric-truck startup’s shares plunging. Nikola says the report contained “false and misleading statements.”

The electric-truck maker has held talks with BP and other energy firms in hopes of striking a deal on hydrogen-refueling stations. Short seller Hindenburg Research alleged in a report that Nikola has misled investors.

Official commemorations of the late Justice Ruth Bader Ginsburg began at the Supreme Court, honoring the groundbreaking jurist whose death reverberated across the country and touched off an intense political clash.

◆ WSJ News Exclusive DOJ to Seek Curbs on Immunity for Internet Companies The Justice Department will submit a proposal to Congress to curb longstanding legal protections for internet companies like Facebook, Alphabet’s Google and Twitter, a senior department official said.

Government Reviewer of Bolton Book Describes Unprecedented White House Intervention The government official assigned to examine whether former national security adviser John Bolton’s book contains classified information said Trump administration lawyers withheld information and conducted an inappropriate second review of the manuscript.