As President Donald Trump roils the capital over illegal immigration, his influential aide Stephen Miller is playing a more aggressive behind-the-scenes role in a wider administration shakeup.
Frustrated by the lack of headway on a signature Trump campaign issue, the senior White House adviser has been arguing for personnel changes to bring in more like-minded hardliners, according to three people familiar with the situation — including the ouster of a key immigration official at the Department of Homeland Security, whose secretary, Kirstjen Nielsen, announced Sunday that she is resigning.
Miller has been telephoning mid-level officials at several federal departments and agencies to demand they do more to stem the influx of immigrants, according to two people familiar with the calls.