But Mr. Trump’s warnings to his former ally are backed by several ways the White House could punish the world’s richest man.

DeMalia said the person posing as Musk, suggested they move their conversation off Facebook and over to Telegram, a cloud-based messaging app. Despite some initial skepticism, DeMalia wanted to ...

The public divorce between two of the most powerful men in the world brings to a close, at least for the moment, an ...