美国参议院共和党建议将债务上限提高5万亿美元，比众议院方案高出1万亿美元

Group 1 - The Senate Republicans have unveiled revised tax and healthcare provisions in President Trump's multi-trillion dollar economic package, marking a significant step towards the goal of passing the bill by July 4 [1] - The new version of the bill expands certain tax cuts and raises the debt ceiling by $5 trillion, compared to the $4 trillion proposed by the House [1] - Senate Republican leaders aim to avoid prolonged negotiations over the substance of the bill, as failure to act could lead to a U.S. default as early as mid-August when the Treasury can no longer take extraordinary debt limit measures [1]