Billionaires and foreign dignitaries to attend Trump's inauguration

Elon Musk, the world's richest person, will be among several billionaires attending Donald Trump's second presidential inauguration. Tesla CEO Musk was instrumental in Trump's reelection with his contribution of over a quarter of a billion dollars to Trump's campaign coffers, according to Forbes. Musk is set to head Trump's new Department of Government Efficiency, along with Vivek Ramaswamy, the biotech entrepreneur.