Democrat Kamala Harris’s running mate Minnesota Gov. Tim Walz slung some insults at Donald Trump and high-profile supporter Elon Musk. Walz, who has been a regular target of put downs from the former president,

Elon Musk is wearing multiple hats this election season, sparking questions about how his dual role as a tech leader and vocal surrogate for former President Trump could lead to conflicts of

Mr. Musk, a megadonor, had flummoxed some Trump advisers by previously declining to write a “super max” check directly to the former president’s campaign.