Republicans can likely only afford to lose three votes, and several GOP critics have threatened to sink the bill.

The House is expected to turn to the Trump-backed GOP agenda bill today after the Senate narrowly passed the sweeping domestic policy package yesterday following a marathon overnight session that spanned more than 24 hours and saw votes on dozens of amendments.

The White House has said workers benefiting from the deduction could see up to $2,000 in annual federal tax savings.