穆迪评级下调了包括美国银行和摩根大通在内的一些大型银行的存款评级，理由是上周五美国主权信用评级被下调，以及政府支持这些银行的能力减弱。

　　穆迪将美国银行、摩根大通和富国银行旗下机构的长期存款评级从Aa1降至Aa2，为第三高级别。穆迪还下调了美国银行和纽约梅隆银行旗下部分机构的高级无抵押债务评级，从Aa1下调至Aa2。

　　此外，穆迪将美国银行、纽约梅隆银行、摩根大通、道富以及富国银行旗下部分机构的长期交易对手风险评级降至Aa2。

　　这是穆迪下调美国主权信用评级引发连锁反应的最新例证。穆迪上周五将美国主权信用评级从Aaa下调至Aa1，并将此归咎于历届政府及国会导致预算赤字不断膨胀，且没有减缓迹象。

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