Trump's second inauguration has had notable support from numerous tech giants.
President-elect Donald Trump laid a wreath at Arlington National Cemetery and then held a "Make America Great Again Victory Rally" in Washington on Sunday ahead of Monday's swearing-in ceremony.
Trump's inauguration has been moved indoors because of frigid temperatures expected in the nation's capital on Monday. Trump said he'll be sworn in and deliver his inauguration address inside the Capitol Rotunda.
Despite the last-second change of venue, Trump told ABC News' Rachel Scott the Big Tech CEOs he invited to the inauguration are "happier" about the change in plans because of the cold and said he expects all of them are still coming.
"We have almost 700 seats. It's not small by any means, but it's small by comparison to being outside," he said. "They're all coming. Every one is coming from the companies."
The Presidential Inauguration Security Team said Saturday that it has updated a lot of the security perimeter that was in place for the inauguration.
The focus will now be on the U.S. Capitol and Capital One Arena.
The screens on the mall have been removed, so there will be no way to view the swearing-in ceremony from the mall.
It also said there will be no parade on Pennsylvania Avenue. Rather, there will be a "standard motorcade" from Capital One Arena to the White House.
-ABC News' Luke Barr
President-elect Donald Trump, his wife, Melania Trump, and their son Barron boarded the Special Air Mission plane that will take them to Washington, D.C.
The president-elect did not walk by the press area on the tarmac but gave a wave as he entered the plane.
Ivanka Trump, her husband, Jared Kushner, and their children boarded the Special Air Mission plane that will take them to Washington for the inauguration.
The couple was heavily involved in the first Trump administration but will not be involved in his second.
Earlier, Eric and Lara Trump and their children were seen boarding the president-elect's private plane.
