CNN: Agency Data Predicts 2 Million Border Migrants in 2021 31 Mar 2021 Government officials now predict that President Joe Biden’s deputies expect two million foreigners will cross the southern U.S. border by September, according to a CNN report. The network reported March 31: Data reviewed by CNN shows that up to 1.1 million single adults are expected through September, along with up to around 828,000 families and more than 200,000 unaccompanied children. Border Patrol encounters are expected to continue to rise month-by-month, according to the projections, which can vary. The last time Border Patrol apprehensions surpassed 1 million was in fiscal year 2006, according to publicly available data from Customs and Border Protection. Border Patrol arrests also climbed during the 2019 border crisis, but fell short of 900,000.