The incoming administration said it would not rely on outside groups to carry out its plan to deport millions of immigrants, but militias have a long record of inserting themselves into patrolling the border.

Donald Trump's pledge to deport all immigrants in the United States illegally has been condemned in an editorial by the Miami Herald, his home state newspaper, which said there are "practical, legal and economic reasons" why the plan will fail.

Gov. Spencer Cox has been joined by 25 other Republican governors in promising to help carry out President-elect Trump's mass deportation plans. Why it matters: The federal government doesn't have enough resources to carry out Trump's goal of deporting 11 million undocumented immigrants from the U.