美国突发一件大事！79岁特朗普确诊患病，敏感时刻，大国出手抛售280亿美债！

Group 1 - The health issues of President Trump raise concerns about the leadership's ability to govern effectively, especially in the context of an aging political landscape in the U.S. [3][10] - The recent sale of $28 billion in U.S. Treasury bonds by a major country has brought its holdings to a 16-year low, indicating a significant shift in foreign investment sentiment towards U.S. debt [6][8] - The U.S. federal debt has surpassed $36 trillion, with Moody's downgrading its sovereign credit rating, leading to increased concerns about fiscal stability and rising borrowing costs [8][10] Group 2 - The geopolitical implications of the bond sell-off suggest a strategic move to diversify foreign reserves and reduce reliance on the U.S. dollar, as countries adjust their asset structures in response to U.S. trade policies [8][10] - The combination of Trump's health issues and the bond sell-off contributes to increased uncertainty in U.S. policies, which may further erode foreign confidence in U.S. Treasury securities [6][9] - The potential for rising interest rates on 10-year Treasury bonds, which have surpassed 4.5%, indicates a growing cost of borrowing for the U.S. government, potentially leading to economic challenges [8][9]