On a face-numbingly frigid afternoon last week, Gov. Kristi Noem used a farewell address to South Dakotans to warn of an “invasion” far away from the state’s windswept prairies and freedom-loving farmers.

Alabama Senator Katie Britt, chair of Senate Homeland Security Appropriations, believes Noem is committed to securing the U.S.-Mexico border after successful confirmation vote Saturday.

South Dakota Gov. Kristi Noem (R) moved a step closer to leading the Department of Homeland Security as the Senate voted on Friday to advance her to a final confirmation vote. Senators voted

President-elect Trump's pick to lead the Department of Homeland Security will face her confirmation hearing on Wednesday, where illegal immigration is likely to be a top topic.

When it comes to immigration, which normally falls under the Department of Homeland Security, Kristi Noem would take direction from two other people, sources tell NBC News.

The former South Dakota governor was read the oath by Supreme Court Justice Clarence Thomas. The ceremony came after earlier Saturday the Senate voted to confirm Noem in a 59-34 vote.

Noem would be just the second South Dakotan to serve in a Presidential Cabinet position, the first being Clinton Anderson of Centerville who served as the Sec. of Agriculture under President Truman.

Kristi Noem, South Dakota's firebrand Republican governor, faced questioning Friday at her confirmation hearing to be secretary of homeland security. Noem, the daughter of a farmer and a former representative from South Dakota, is being questioned before the Senate Homeland Security and Governmental Affairs Committee.

The gubernatorial transition comes after Kristi Noem was confirmed as the next Department of Homeland Security Secretary following a Senate vote on Saturday morning.

The 61-39 result tees up a final Saturday morning roll call vote on the Republican South Dakota governor’s Cabinet nomination.

After a scheduling hiccup, Kristi Noem was finally sworn in Saturday as Department of Homeland Security secretary.