Republicans are stepping up their scrutiny of dozens of shelters run by aid groups on the U.S. border with Mexico.

President-elect Donald Trump’s pick to oversee what he has promised to be the country’s largest ever deportation effort says he will need tens of billions of dollars to carry out the mission, but it will ultimately reduce taxpayers’ burden.

Donald Trump’s newest border czar says he is beginning talks with other nations in hopes to find a country that is willing to provide refuge for displaced migrants whose home nations won’t take them back.