Spokespeople for the Senate Finance Committee, which drafted the bill, did not immediately respond to a request for comment. Two committee Republicans had said they were considering voting against the measure.
Sen. Susan Collins of ME says she has won support to amend the Senate's sweeping tax bill allow homeowners to deduct at least a portion of their local property taxes on their federal tax returns.
Ronna Romney McDaniel said all Republicans owe it to the American people to get tax reform passed during an interview on Sunday. Afterward, Collins said Trump and other GOP leaders agreed to the property tax provision. Lawmakers "alarmed" by EPA's science board changes MORE (Pa.), Patrick Meehan (Pa.), Dave ReichertDavid (Dave) George ReichertMounting GOP retirements threaten House majority The Hill's Whip List: Where Republicans stand on tax-reform bill The future lies in the Asia-Pacific MORE (Wash.) and Michael Turner (Ohio).
The lowest-income American households would take a hit while higher-earning taxpayers would see their burden reduced under the Senate Republican tax plan, according to the latest analysis from the nonpartisan Congressional Budget Office.
McConnell said trying to get 50 votes for the bill is like "sitting there with a Rubik's cube". It would impose a one-time, cut-rate tax on corporations' foreign profits, while exempting future foreign profits from USA taxation.
Several of the moderates had been actively courted by President Donald Trump on the tax overhaul in recent weeks, invited to meetings and dinners at the White House and trips with Trump on his plane. They are up for re-election next year.
The change largely stems from the bill effectively getting rid of the Obamacare provision requiring most Americans to have health insurance or pay a penalty.
If the bill passes the Senate, Republicans plan to convene a conference committee next week to reconcile the House and Senate versions. But he told the American Enterprise Institute that "the House has always been strongly supportive of eliminating that forced tax".
The Senate bill would keep seven individual tax brackets, similar to current law, while the House bill would have four brackets.
But Republican leaders said they have yet to round up the votes needed for passage in the Senate, where they hold a narrow 52-48 majority.