Tech mogul and CEO of Tesla and SpaceX Elon Musk was seen cheering on Donald Trump as the latter was sworn in as president on Monday.

Among the guests at Donald Trump's second inauguration in Washington, D.C. today were three billionaire tech CEOs: Amazon's Jeff Bezos, Tesla's Elon Musk, and Meta's Mark Zuckerberg. They were also joined by Google CEO Sundar Pichai and Apple CEO Tim Cook.

Stewart took on Trump’s news-filled Inauguration Day (full video, below) during Monday’s episode of Comedy Central’s The Daily Show. During Stewart’s 15-minute opener, he mocked the tech billionaires in attendance, President Joe Biden’s last-minute pardons of his family, Elon Musk’s controversial crowd salute and, of course, Trump’s speech.

Elon Musk offered Donald Trump supporters what looked a lot like a Nazi salute on live TV at Trump's post-swearing-in inauguration rally.

Ike Perlmutter and Elon Musk attended Donald Trump's second inauguration together. Perlmutter, a major Trump donor, was outspent by Musk's $75 million contribution. Perlmutter’s controversial involvement in Trump's previous administration is noted. Perlmutter supports trans surgical research, donating millions to NYU's health initiatives.

Remember Elon Musk’s gesture at President Donald Trump’s inauguration? You know the one. Where he slapped his chest and then did what looked suspiciously like a Nazi salute, even though everyone on the right is blaming Musk’s autism,