US on track to encounter record 2 million migrants on the southern border, government estimates show

The US is on track to encounter more than 2 million migrants at the US-Mexico border by the end of the fiscal year, according to internal government estimates reviewed by CNN, marking a record high.

The projections could be subject to change in the event of policy modifications or other changes in Latin America. US Border Patrol encounters are also expected to be largely made up of single adults, who are being turned away at the US southern border as soon as they're encountered under a public health order, and as a result, might also account for repeat crossers. But combined, the data -- based on preliminary reporting as of this month -- illustrates the continuing challenge for the Biden administration, which has already faced a series of hurdles on the US-Mexico border, particularly with unaccompanied children and migrant families.