Despite bipartisan support for fiscal responsibility, the US national debt continues to climb, with Trump's spending plans threatening to add trillions to the debt pile.
Republican senators, including Rand Paul, are critical of Trump's bill, while economists have long expressed concern about the increasing US debt.
The US debt stood at $14.46tn in 2008 and rose to $35.46tn last year, with Trump's tax cuts contributing to the growing deficit.
Moody's stripped the US of its top-tier credit rating due to the increasing debt and projected future growth.
The federal government faces a debt ceiling, which has sparked battles in Congress and raised questions about the reliability of US debt as an investment.
Moody's expects the federal debt burden to rise to 134% of GDP by 2035, with interest payments on US government debt increasing significantly.
Presidents have historically reassured investors about addressing debt concerns, but Trump's unpredictability adds uncertainty about fiscal stability.
Calls to scrap the debt limit to prevent economic catastrophe have been made amid concerns about the US fiscal fundamentals.