Are record border crossings coinciding with decades-low unauthorized population shares?
Core argument: Nearly 250,000 undocumented migrants crossed the U.S. border in November alone, and record numbers of apprehensions and expulsions have occurred during Joe Biden's presidency, making him a clear outlier on border crossings.
Mr Biden is a clear outlier in terms of the number of undocumented, or illegal, migrants crossing the border. During his presidency there have been record numbers of apprehensions and expulsions at the border; nearly 250,000 people crossed in November alone. The Pew Research Centre reckons that there were 10.5m illegal immigrants in 2021, the latest year available. That is roughly the same as in 2017 and fewer than in any other year between 2005 and 2015. It also puts illegal migrants at roughly 3% of people living in America and 22% of the country’s foreign-born population—the lowest shares since the 1990s. This data does not include estimates since the latest wave of encounters at the border; some 600,000 people are thought to have slipped through undetected in 2023.

