While Trump has not officially announced his choice, the reported move is widely viewed as part of his commitment to strict immigration enforcement.

Noem's appointment comes as Trump names immigration hardliners Stephen Miller and former ICE director Tom Homan to senior advisory roles.

Stephen Miller has reportedly been selected to serve as White House Deputy Chief of Staff, with an advisory role on immigration plans. At the same time, Tom Homan has already been announced as the new "Border Czar."