Federal authorities on Monday charged more than two dozen legal permanent residents in California in a crackdown on people accused of illegally voting.
Applicants who had scheduled interviews have received emails informing them that their appointments have been postponed and that fresh dates would be communicated later.
Those confrontations remain the backdrop to Minnesota's Democratic primary on Tuesday, which features establishment-backed US Rep. Angie Craig and the more progressive Lt. Gov. Peggy Flanagan.
The sharp rise in the last two years suggests that illegal overseas recruitment networks are becoming increasingly active in the state or that reporting has improved significantly.
Immigrants from Malawi, Zimbabwe and Mozambique made up the majority of migrants deported or repatriated, but they also included citizens of Nigeria, Uganda and Kenya, South African officials said.
