After four years of President Trump’s harsh immigration policies, many advocates for Central American migrants welcomed a change in administration. But after two months in office, President Biden has given a clear message to people arriving at the U.S.-Mexico border: “don’t come.” Still, thousands of people, including an increasing number of unaccompanied children, are making the trek and forcing Biden to face his first big immigration test.

Guest: Adolfo Flores, national security for immigration correspondent at Buzzfeed.

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