CNN  —  Elon Musk has long been known for his competitive spirit — and for his list of rivals. He challenged Meta’s Mark Zuckerberg to a cage fight. He called Amazon and Blue Origin boss Jeff Bezos a “copycat.” And just recently, he sued OpenAI’s Sam Altman. Until now, these were business and personal rivalries between some of the richest and most successful people in the world. But with Musk’s new influence in the incoming Trump administration and position as “first buddy,” some fear he could