Sen. Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE (I-Vt.) on Sunday said he found it "amusing" that President Donald Trump attacked the establishment during his inauguration speech while billionaires were sitting right behind him.

"I found it somewhat amusing that Mr. Trump, President Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE, was punching the establishment," Sanders said on CBS's "Face The Nation."

"But right behind him, sitting in the VIP sections, were billionaire, after billionaire, after billionaire."

Sanders said some of the most powerful people in the country were in attendance, adding that they have become much richer over the last 10 or 20 years while the middle class has "shrunk."

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"I find it somewhat amusing that you're attacking the establishment when the establishment is sitting right behind you," Sanders said.

"And when billionaires and large corporations are funding many of your inaugural events."

If the president is serious about standing up for working families, Sanders said, he wouldn't "throw 20 million working people off of health insurance." Sanders also said Trump wouldn't cut Medicare and Medicaid.

"The best thing that Mr. Trump can do right now, today, is to send out a tweet and tell the American people that during the campaign when he said over and over and over again that he would not cut Social Security, cut Medicare, cut Medicaid, tell the American people that he was not lying," Sanders said.

"That he's going to keep his word and that they do not have to live in anxiety."