President Trump's second inauguration didn't look like his first one, as there was a smaller audience this time around inside the Capitol Rotunda. But Mr. Trump's Friday decision to move the program indoors due to dangerously cold temperatures does nothing to change the order of the ceremony.

Here is a partial list of the bigwigs who attended Donald Trump’s second inauguration, based on observation of who appeared during the ceremony, seating placards that were placed in the Rotunda, and media reports. Elon Musk, co-chair of the Department of Government Efficiency, CEO of SpaceX, Tesla and X, and the world's wealthiest person.

President-elect Donald Trump will be sworn in on Monday as his inauguration ceremony is set to take rare form inside the U.S. Capitol.