South Dakota Gov. Kristi Noem​, President-elect Donald Trump's pick to lead the sprawling Department of Homeland Security, is set to field questions from lawmakers.

The department that the South Dakota governor seeks to lead will be critical to fulfilling the incoming administration’s promises to quickly crack down on immigration.

If confirmed, Noem would lead the department poised to be at the center of Trump's immigration policy priorities, including any deportation efforts, visa changes and border security.