Why GM’s Mary Barra Still Believes in EVs, Despite Slow Sales

Mary Barra, G.M.’s chief executive, said that the company had fixed battery-manufacturing problems and that its electric vehicles would soon be profitable.

How Elon Musk’s Security Detail Has Grown Following Death Threats and Stalkers

As threats to his personal safety have become graver, the world’s richest man has barricaded himself behind a phalanx of bodyguards that operates like a mini-Secret Service.

How Elon Musk Is Influencing Donald Trump

Their fast-evolving political friendship has become a potential minefield, as Mr. Musk’s sprawling businesses may present conflicts of interest if Mr. Trump is elected in November.

Silicon Valley Venture Capitalists Pledge to Support Kamala Harris

The group, including Democratic donors such as Reid Hoffman and Vinod Khosla, has been organized under an effort called VCsForKamala.

Tesla Q2 Earnings Report Reveals 45% Profit Drop Amid Weak E.V. Sales

The company led by Elon Musk is selling fewer electric cars, and its big bets on driverless taxis and artificial intelligence could take many years to pay off.

Elon Musk’s Politics May Be Pushing Some Buyers Away From Tesla

The Tesla chief executive’s polarizing statements have alienated some potential customers and may be partly responsible for a recent slump in sales.