Morgan Stanley $MS has begun marketing a $5 billion financing package—comprising bonds and two loans—on behalf of Elon Musk's artificial intelligence venture, xAI. The move coincides with a very public falling-out between Musk and U.S. President Joe Biden, drawing attention to both the structure of the deal and the timing of its announcement. The proposed offering includes a floating-rate term loan B and a fixed-income tranche, both carrying aggressive terms, hinting at investor appetite and the high-risk, high-reward nature of the AI sector.