One major sticking point for Republican fiscal hawks is the megabill's proposed $5 trillion debt ceiling increase.

U.S. Senate Republicans planned to vote Saturday on President Donald Trump's sweeping tax-cut and spending bill after agreeing on changes to address concerns about funding for rural hospitals and the deductibility of state taxes.

The legislation is a sprawling collection of tax breaks, spending cuts and other Republican priorities, including new money for national defense and deportations.