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Senator Bernie Sanders, an Independent from Vermont, takes photographs with a mobile device during the 59th presidential inauguration in Washington, D.C., U.S., on Wednesday, Jan. 20, 2021. Biden will propose a broad immigration overhaul on his first day as president, including a shortened pathway to U.S. citizenship for undocumented migrants - a complete reversal from Donald Trump's immigration restrictions and crackdowns, but one that faces major roadblocks in Congress. Photographer: Tasos Katopodis/Getty Images/Bloomberg via Getty Images

Senator Bernie Sanders, an Independent from Vermont, takes photographs with a mobile device during the 59th presidential inauguration in Washington, D.C., U.S., on Wednesday, Jan. 20, 2021. Biden will propose a broad immigration overhaul on his first day as president, including a shortened pathway to U.S. citizenship for undocumented migrants - a complete reversal from Donald Trump's immigration restrictions and crackdowns, but one that faces major roadblocks in Congress. Photographer: Tasos Katopodis/Getty Images/Bloomberg via Getty Images

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Senate Minority Leader Chuck Schumer, a Democrat from New York, from right, Senator Bernie Sanders, an Independent from Vermont, and Senator Debbie Stabenow, a Democrat from Michigan, wear protective masks during the 59th presidential inauguration in Washington, D.C., U.S., on Wednesday, Jan. 20, 2021. Biden will propose a broad immigration overhaul on his first day as president, including a shortened pathway to U.S. citizenship for undocumented migrants - a complete reversal from Donald Trump's immigration restrictions and crackdowns, but one that faces major roadblocks in Congress. Photographer: Kevin Dietsch/UPI/Bloomberg via Getty Images

Senate Minority Leader Chuck Schumer, a Democrat from New York, from right, Senator Bernie Sanders, an Independent from Vermont, and Senator Debbie Stabenow, a Democrat from Michigan, wear protective masks during the 59th presidential inauguration in Washington, D.C., U.S., on Wednesday, Jan. 20, 2021. Biden will propose a broad immigration overhaul on his first day as president, including a shortened pathway to U.S. citizenship for undocumented migrants - a complete reversal from Donald Trump's immigration restrictions and crackdowns, but one that faces major roadblocks in Congress. Photographer: Kevin Dietsch/UPI/Bloomberg via Getty Images

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WASHINGTON, DC - JANUARY 20: Sen. Bernie Sanders (I-VT) wears mittens as he attends the inauguration of Joe Biden on the West Front of the U.S. Capitol on January 20, 2021 in Washington, DC. During today's inauguration ceremony Joe Biden became the 46th president of the United States. (Photo by Jonathan Ernst-Pool/Getty Images)

WASHINGTON, DC - JANUARY 20: Sen. Bernie Sanders (I-VT) wears mittens as he attends the inauguration of Joe Biden on the West Front of the U.S. Capitol on January 20, 2021 in Washington, DC. During today's inauguration ceremony Joe Biden became the 46th president of the United States. (Photo by Jonathan Ernst-Pool/Getty Images)

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Senator Bernie Sanders, a Democrat from Vermont, speaks on a mobile phone while arriving for the 59th presidential inauguration in Washington, D.C., U.S., on Wednesday, Jan. 20, 2021. Biden will propose a broad immigration overhaul on his first day as president, including a shortened pathway to U.S. citizenship for undocumented migrants - a complete reversal from Donald Trump's immigration restrictions and crackdowns, but one that faces major roadblocks in Congress. Photographer: Saul Loeb/AFP/Bloomberg via Getty Images

Senator Bernie Sanders, a Democrat from Vermont, speaks on a mobile phone while arriving for the 59th presidential inauguration in Washington, D.C., U.S., on Wednesday, Jan. 20, 2021. Biden will propose a broad immigration overhaul on his first day as president, including a shortened pathway to U.S. citizenship for undocumented migrants - a complete reversal from Donald Trump's immigration restrictions and crackdowns, but one that faces major roadblocks in Congress. Photographer: Saul Loeb/AFP/Bloomberg via Getty Images