The tax overhaul is hitting a big bump in popularity.
But a few of the biggest corporations have said they don’t expect to see a major jump in revenue from the overhaul, as the bill tries to create a new tax code.
Read moreThe House is expected to vote on the bill by mid-March.
Some Republican lawmakers have warned that it could cause tax hikes for some middle-class Americans and even spur some corporations to close their U.S. factories.
The tax bill, passed by the House and Senate this week, would slash corporate taxes by 25 percent and lower rates for individuals by 20 percent.
The Senate, which is in a rare partisan split on the tax bill despite the Senate having passed a version in 2017, is set to vote next week on the final version.
The House and the Senate are still working on a plan to repeal and replace the Affordable Care Act, or Obamacare, which would be a key goal for Democrats.
The White House says it expects the tax overhaul to be approved by Congress by the end of March.