As Donald Trump is sworn in, the nation's richest and most powerful tech tycoons had some of the best seats in the house.

After coming under fire for making a one-armed gesture that many observers thought was a Nazi salute, Elon Musk has responded to the subsequent backlash. The billionaire was giving a speech during Donald Trump's inauguration when he made the salute—not once,

Elon Musk caused a major stir on social media when, during his speech at a rally at the Capital One Arena, he made a gesture twice that resembled a Roman salute. Terms such as "fascist" or "Nazi" emerged,