The Senate voted on Saturday morning to confirm Kristi Noem as President Donald Trump’s Homeland Security secretary, installing a long-time Trump ally at the helm of an agency poised to play a central role in the president’s promised immigration crackdown.

The U.S. Senate confirmed Kristi Noem as homeland security secretary on Saturday, putting the South Dakota governor in charge of a sprawling agency that is essential to national security and President Donald Trump’s plans to clamp down on illegal immigration.

The Senate struck a deal to hold a vote Saturday morning on Kristi Noem’s nomination to be the secretary of the Department of Homeland Security. The Senate is expected to vote Saturday at 11:30 a.m. to confirm Noem instead of returning on Sunday as originally planned.