The May 1 study estimating the potential effects of a mass deportation program estimated that 3.8 percent of all U.S. citizen children — about 2.7 million in total — face the potential of being left without either parent in their home as a result of such a program, while 4.71 million — 6.7% of all citizen children — are at risk of losing from their household one parent who is in the U.S. without documents.
