The changes made to President Trump's big tax bill in the Senate would pile trillions onto the nation's debt load while resulting in even steeper losses in healthcare coverage, the Congressional Budget Office said in a new analysis.

The analysis also found that 11.8 million more Americans would become uninsured by 2034 if the bill became law.

The Republican-controlled U.S. Senate advanced President Donald Trump's sweeping tax-cut and spending bill in a key procedural vote on Saturday, raising the odds that lawmakers will be able to pass the legislation in coming days.