President Donald Trump's "first buddy," Elon Musk, was seemingly everywhere in D.C. on Inauguration Day. Where (and with whom) was the billionaire?

Elon Musk could occupy space in the Eisenhower Executive Office Building next to the West Wing to head up the newly created Department of Government Efficiency, known as DOGE.

The location suggests that Mr. Musk, who owns companies with billions of dollars in contracts with the federal government, will continue to have remarkable access to President-elect Donald J. Trump.

In the years since Sen. Mike Lee and Elon Musk first began exchanging posts, the businessman has only seen his political power — and wealth — grow.

As if the billionaire megadonor doesn’t already have enough access to Donald Trump, Musk is reportedly poised to receive office space near the West Wing.

Billionaires to have arrived at the Capitol Rotunda Monday morning include Tesla founder and CEO Elon Musk, Amazon founder Jeff Bezos, Meta CEO Mark Zuckerberg, former presidential candidate Vivek Ramaswamy, OpenAI CEO Sam Altman, billionaire Trump supporter Miriam Adelson, media mogul Rupert Murdoch and others.

8:43 a.m. EST Trump and his wife, Melania Trump, arrive at St. John’s Church, after departing Blair House—a guest house near the White House where incoming presidents traditionally stay—alongside Vice President-elect JD Vance and his wife, Usha Vance.

Office space set aside for Musk is in the Eisenhower Executive Office Building, which is located right next to the White House

The news broke shortly before he was sworn in Monday morning, and Trump confirmed it during his inaugural address. The order will rename the Gulf of Mexico to the Gulf of America, and Mount Denali to Mount McKinley, which was the official name recognized by the federal government from 1917 until 2015.

Trump’s Mars pledge elicited a huge grin and enthusiastic double thumbs up from billionaire and top Mars colonization enthusiast Elon Musk, who has been pushing his Mars colony agenda for nearly a decade via his SpaceX company. Donald Trump used his inauguration speech to whine about tech billionaires’ homes being burnt down.