Jerry Nadler (D-N.Y.) was among those who sharply criticized billionaire Elon Musk on Monday for making “what appears to be a Heil Hitler salute” during an event celebrating the inauguration of President Trump.

In a speech at President Donald Trump’s inaugural rally, Musk raised his right arm in the air twice in a row in a gesture some compared to a Nazi salute.

Tuesday marks President Donald Trump's first full day in office. Keep up with the USA TODAY Network's coverage of his top priorities for Americans.

Elon Musk responded to criticism of his gesture during a post-inauguration speech on Monday, saying those comparing it to a Nazi salute were deploying "dirty tricks."

The billionaire tech titan caused outrage on social media after he placed his right hand over his heart and then extended his arm into the air as he thanked Trump’s supporters on Monday

The debate over Musk’s latest move has added fuel to other ongoing feuds, too.

German Chancellor Olaf Scholz said on Tuesday he does not support freedom of speech when it is used for extreme-right views, a day after a hand gesture by U.S. billionaire Elon Musk caused uproar during Donald Trump's inauguration festivities. Everyone can say what he wants, even if he is a billionaire.

In one way, Bay Area tech CEOs’ very visible presence at President Donald Trump’s inauguration on Monday was an almighty flex, a crowning moment for an industry that has remade the economy and society.

Musk’s first day in Trump’s Washington was not without controversy after he made a gesture observers said resembled a Nazi salute.

Elon Musk responded to criticism of his gesture during a post-inauguration speech on Monday, saying those comparing it to a Nazi salute were deploying "dirty tricks."

The ADL has come under criticism for it claiming that Elon Musk's alleged 'Nazi salute' was nothing more than an 'awkward gesture'.