#OneBigBeautifulBill The key policies dividing Republicans.

Representatives from poorer districts are worried about the Senate version of the bill harming their constituents, which could also hurt them at the polls in 2026. According to the Hill, six Republicans planning to vote down the bill due to concerns about cuts to key provisions, including cuts to medical coverage.

Some of the critical Republicans have attacked the Senate's more aggressive cuts to Medicaid, the healthcare programme relied upon by millions of low-income Americans.

House Republicans had wrestled over how much to cut Medicaid and food subsidies in the initial version their chamber passed. They needed the bill to reduce spending, in order to offset lost revenue from the tax cuts contained in the legislation.

The Senate made steeper cuts to both areas in the version passed on Tuesday.

Changes to Medicaid and the Affordable Care Act in the Senate's bill would see roughly 12 million Americans lose health insurance by 2034, according to a CBO report published on Saturday.

Discussing the Medicaid issue with former Trump adviser and conservative podcaster Steve Bannon, Georgia Congresswoman Marjorie Taylor Greene was asked whether the House might simply "rubber stamp" the Senate version.

The right-wing House member and Trump loyalist responded that there was not enough support to get the bill through the House, using strong language to suggest the situation was a mess.

She said. "It's really a dire situation. We're on a time clock that's really been set on us, so we have a lot of pressure."

The bill also deals with the question of how much taxpayers can deduct from the amount they pay in federal taxes, based on how much they pay in state and local taxes (Salt). This, too, has become a controversial issue.

There is currently a $10,000 cap, which expires this year. Both the Senate and House have approved increasing this to $40,000.

But in the Senate-approved version, the cap would return to $10,000 after five years. This change could pose a problem for some House Republicans.