Critics have said big business and high earners benefit most and criticised the $1.5 trillion it is estimated to add to the deficit, due to lost tax revenue.

Voices of dissent from Republican senators have now become to emerge, throwing into question whether the bill will get enough votes in the Senate to pass.

Ron Johnson, the Republican senator for Wisconsin, vowed not to vote for the current package, adding: “If they can pass it without me, let them.”

Bob Corker and Jeff Flake, two fierce internal critics of Mr Trump, have questioned the impact the bill would have on the country’s deficit.

The unexpected inclusion of the repeal of a key part of Obamacare - the "individual mandate" which demands almost everyone get health insurance - has also angered some Republicans.