BOSTON (AP) — Confusion, sorrow and outrage are rippling across some immigrant communities after the announcement of a Trump administration policy that is expected to all but shut down family-based immigration from four countries.

The policy will affect migrants from Myanmar, Nigeria, Kyrgyzstan and Eritrea. It also restricts visas from Sudan and Tanzania. A Dallas immigration lawyer from Nigeria says her phone has been ringing nonstop.

The United African Organization has held legal clinics in Chicago to walk people through their options. Activists are lobbying for Congress to pass a law that would limit the president’s ability to restrict entry to the U.S.