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Bernie Sanders answers questions during a press conference about President Donald Trump's budget proposal in Washington, D.C., May 23, 2017. Getty Images

Bernie Sanders ripped President Donald Trump’s proposed budget Wednesday after the administration released an outline of their plan. The Vermont senator appeared on NBC to say that the proposal was “grotesquely immoral.”

“That budget that Trump has presented is a grotesquely immoral budget,” he said in the appearance. “It is a horrific budget.”

Sanders went on to say that the budget plan merely benefits the nation’s richest people and wreaks havoc on the poor.

Read: Six Of The Most Surprising Cuts And Proposals In Trump’s Budget

“What you are looking at is a massive transfer of wealth from working families, from seniors, from children, into the hands of the very, very richest billionaires in this country,” he said. “It is an outrageous budget. It is a budget the American people do not want. It is a budget that should not see the light of day in the U.S. Senate.”

Trump released the $4.1 trillion plan entitled “A New Foundation for American Greatness” Tuesday. The proposal included $3.6 trillion in federal spending cuts spanning the next decade in areas like Medicaid, the national food stamp program and environmental research.

“If you are a low-income pregnant woman, you’re going to lose nutrition programs for yourself and your baby…millions of kids will lose their health insurance. Senior citizens will lose perhaps the one nutritious meal a day they get,” said Sanders. “Kids who are desperately trying to figure out how they will go to college, working class kids, will see Pell grants cut. Environmental programs will be decimated.”

Sanders also slammed the budget in a series of tweets.

“Trump’s budget is immoral and it must be soundly defeated,” he wrote in one post.

“When we talk about Trump’s immoral budget, I want you to think about this: Trump is trying to cut $191 billion from the food stamps program,” Sanders said in a second tweet.

The Vermont senator was not alone in his denunciation of the plan. Former Democratic presidential candidate Hillary Clinton said the plan showed “an unimaginable level of cruelty and lack of imagination and disdain for the struggles of millions of Americans, including millions of children.”

Read: Bernie Sanders Says Trump’s Tax Plan Makes Rigged System Worse

“It hurts the well-being of children,” Clinton said Tuesday during a gala for the Children’s Health Fund. “It’s time to send a resounding message that we will not stand for this attack on the most vulnerable among us.”

The administration, particularly Trump’s budget chief Mick Mulvaney, stood by the proposal amid an onslaught of criticism.

“We are no longer going to measure compassion by the number of programs or the number of people on those programs, but the number of people we help get off of those programs,” Mulvaney said Tuesday, according to CNN.

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Bernie Sanders answers questions during a press conference about President Donald Trump's budget proposal in Washington, D.C., May 23, 2017. Getty Images