Elon Musk's father Errol has called his son's feud with President Donald Trump a "mistake," saying the pair "have been under incredible stress for five months." The world has watched the dramatic fallout between Trump, one of the most powerful men on the planet, and Elon Musk, the world's richest man.

In an interview with NBC News, the president also said he assumes his relationship with the tech billionaire is over following their recent falling out.