Visa sanctions were imposed on Cambodia, Eritrea, Guinea and Sierra Leone.
When Sunayana Dumala’s husband was killed in a suspected hate crime in February, she lost her legal right to remain in the United States.
The issue has ignited intense debate within the administration, with officials at the National Security Council, the State Department and the Department of Defense opposing a precipitous drop.
President Trump gave Congress six months to pass legislation protecting young immigrants brought here as children. If anything, the effort is moving backward.
Ms. Napolitano, the homeland security secretary under President Obama, signed the memo creating DACA and now is president of the University of California system.