Last month, Microsoft and Constellation Energy announced a deal to restart Pennsylvania’s Three Mile Island, the site of the country’s worst nuclear power accident. WSJ’s Jennifer Hiller reports that the goal is to power the tech giant’s growing artificial intelligence ambitions.

The vice-presidential candidates took center stage at a debate this week. Ryan Knutson talks with Molly Ball about the important takeaways, and Rachel Humphreys speaks to a listener about why she’s thinking about climate change this election. 

Under CEO John Donahoe, Nike pulled away from retailers and ramped up production of its classic sneaker lines. Now sales have plummeted, the company has lost market share to competitors and Donahoe is stepping down. WSJ's Inti Pacheco discusses what went wrong.