Tesla CEO Elon Musk boards Air Force One with U.S. President Donald Trump (not pictured) as they departs for Philadelphia, Pennsylvania, from Morristown Municipal Airport in Morristown, New Jersey, U.S., March 22, 2025. Nathan Howard | ReutersElon Musk said on Friday that his startup xAI has merged with X, his social network, in an all-stock transaction that values the artificial intelligence company at $80 billion and the social media company at $33 billion."xAI and X's futures are intertwined,...