The number-two Democrat in the House ripped the tax reform bill as a "perverse" giveaway to wealthy Americans.
Minority Whip Steny Hoyer (D-Md.) called the tax plan a "bad bill for our country."
Hoyer, who represents the Washington, D.C. suburbs of Calvert and Charles Counties, said he wished Republicans would've worked in a bipartisan way to get some Democratic support for their plan.
"We want to give a tax cut as well," he said, adding that President Ronald Reagan's model of working with then-Speaker Thomas "Tip" O'Neill (D-Mass.) to pass 1980s tax reform should've been current Republicans' blueprint.
Hoyer called the bill "perverse in the sense that it gives 83 percent of its tax cuts to the wealthiest in America."
He also praised the late ruling by the Senate parliamentarian that flagged pieces of the House bill as incompatible with Senate rules on passing bills through "reconciliation" - with a simple majority.
Earlier Tuesday, Senate Budget Committee Ranking Member Bernie Sanders (I-Vt.) and Sen. Ron Wyden (D-Ore.) said Republicans' "mad dash to provide tax breaks to their billionaire campaign contributors" led them to break Senate rules.
"We applaud the parliamentarian for determining that three provisions in this disastrous bill are in violation of the Byrd rule," they said.
A few parts of the bill, including a education provision championed by Sen. Ted Cruz (R-Texas), were found to be out of compliance with the 1974 rule set forth by Sen. Robert Byrd (D-W.Va.).
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