(NBC) - The new secretary of Homeland Security was sworn in on Wednesday at the White House.
The senate confirmed 45-year-old Kirstjen Nielsen by a vote of 62 to 37 on Tuesday.
Nielsen was joined by the White House Chief of State, John Kelly during the searing-in ceremony.
Considered a cybersecurity expert, Nielsen formerly served as a top aide to Kelly at the White House and also under his leadership at the DHS.
Nielsen is the sixth person to lead the agency and the first former DHS employee to become secretary.
Nielsen will now oversee more than 240,000 employees and responsibilities that include immigration enforcement, disaster response and domestic counter-terrorism.