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.

What Ails Offshore Wind: Supply Chains, Ships and Interest Rates

Government officials and energy developers misjudged the difficulty of building huge clean energy projects in the United States, which has built very few of them.