The blowup between the president of the United States and the world's richest man has played out on social media in real time, the latest, perhaps ultimate example of how X has become Elon Musk's ...

Transportation Secretary Sean Duffy says Biden-era fuel economy standards for gas-guzzling cars and trucks were illegal and ...

The White House tells the BBC the president does not intend to speak to Musk today following their fiery exchanges on ...

A General Motor Co. insider who started as a skilled tradesman is the automaker's new global manufacturing leader, GM said ...

We also discuss why automakers are not blaming tariffs for price increases and the impact of China's export restrictions on ...