The swearing-in ceremony in Washington, moved indoors due to glacial temperatures, is being attended by former presidents, foreign dignitaries, tech and business executives, and an assortment of performers and celebrities.

WASHINGTON, DC – JANUARY 20: Guests including Mark Zuckerberg, Lauren Sanchez, Jeff Bezos, Sundar Pichai and Elon Musk attend the Inauguration of Donald J. Trump in the U.S. Capitol Rotunda on January 20, 2025 in Washington, D.C. Photo by Julia Demaree Nikhinson – Pool/Getty Images.