From the Document: "In the past several weeks, the Biden Administration has engaged [hyperlink] in a series of executive actions on a range of issues. Some concern the administration and enforcement of federal immigration laws. These immigration-related initiatives purport to revise substantially Trump Administration policies that generally prioritized immigration enforcement activities and restricted the ability of some non-U.S. nationals (aliens) to enter the United States or pursue immigration benefits. [...] This Legal Sidebar provides a brief overview of President Biden's executive orders and other directives relating to immigration through March 23, 2021."
CRS Legal Sidebar, LSB10574
Congressional Research Service: https://crsreports.congress.gov/