Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.) slammed the GOP tax bill moments after Republicans released the final version.

In a tweet, Sanders called the bill a “moral and economic obscenity” and urged his colleagues not to vote to pass it.

“This tax bill is a moral and economic obscenity,” Sanders tweeted. “It is a gift to wealthy Republican campaign contributors and an insult to the working families of our country. No member of Congress should vote for this disastrous legislation.”

This tax bill is a moral and economic obscenity. It is a gift to wealthy Republican campaign contributors and an insult to the working families of our country. No member of Congress should vote for this disastrous legislation. https://t.co/Mwt1QP8Ybz — Bernie Sanders (@SenSanders) December 15, 2017

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Republicans announced Friday that they would have the votes to pass the bill after Sens. Marco Rubio Marco Antonio RubioOvernight Defense: Pentagon redirects pandemic funding to defense contractors | US planning for full Afghanistan withdrawal by May | Anti-Trump GOP group puts ads in military papers Democrats step up hardball tactics as Supreme Court fight heats up Press: Notorious RBG vs Notorious GOP MORE (R-Fla.) and Bob Corker Robert (Bob) Phillips CorkerHas Congress captured Russia policy? Tennessee primary battle turns nasty for Republicans Cheney clashes with Trump MORE (R-Tenn.) both said they would vote “yes.”

The House and Senate are expected to vote on the bill early next week, with a goal to send the legislation to President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE’s desk by Christmas.

Sanders, along with other Democrats, has been a vocal critic of the bill, arguing that it primarily benefits wealthy Americans and corporations while hurting middle- and low-income taxpayers.

"By lowering tax rates, simplifying the rigged and burdensome tax code and repealing the failed tax on lower- and middle-income households known as the ObamaCare individual mandate, this legislation will grow our economy, raise wages and promote economic competitiveness," White House press secretary Sarah Huckabee Sanders said on Friday, following the release of the final text.

— Updated 6:35 p.m.