Sen. Bernie Sanders, I-Vt., has taken Elon Musk to task over his massive fortune, saying that it cannot be right to keep so much wealth in reserve while millions of Americans struggle to meet basic needs. Musk has defended his wealth as going toward a worthy cause, namely sending people into space.

The latest clash started Thursday, with Sanders criticizing both Musk and Amazon CEO Jeff Bezos, the only man wealthier than the Tesla founder.

Sanders’ comments are hardly unusual for the populist hardliner. He’s been a frequent critic of policies and economic systems that concentrate wealth in the hands of the few. This time, the outlet Clean Technica, a frequent Tesla proponent, picked up on the criticism. That prompted a reply from Musk himself.

Sanders apparently wasn’t impressed by Musk’s promises, telling the billionaire to “focus on Earth” instead of trying to escape the planet’s problems.

The exchange prompted its fair share of debate online. Musk has a sizeable fanbase, with many people viewing him as the kind of anti-establishment innovator the country needs. Paired with Musk’s sizeable online presence, any criticism of Musk’s ideas is sure to encounter a backlash.

This file photo from March 9, 2020 shows Tesla boss Elon Musk speaking at an event in Washington; he has denied that his cars could be used to spy on China
This file photo from March 9, 2020 shows Tesla boss Elon Musk speaking at an event in Washington; he has denied that his cars could be used to spy on China AFP / Brendan Smialowski

Bezos, who is leaving Amazon, has remained mum. He maintains a much lower profile than Musk, preferring not to engage with attacks online or try to cultivate a digital following.