WASHINGTON (AP) — The Senate is on the verge of confirming Markwayne Mullin as President Donald Trump's nominee for Secretary of Homeland Security, stepping into a role amid controversy and public scrutiny.

Mullin, a Republican from Oklahoma, is known for his strong support of Trump's policies, particularly on immigration, which will be a central focus of his tenure. He has positioned himself as a stabilizing force within the department, acknowledging the need to improve its public image during a tumultuous period.

The nomination advanced after a largely partisan vote in a rare weekend Senate session, with confirmation expected by Monday. Mullin will face immediate challenges, including restoring funding to the department, which has faced a standstill over Democrats' demands for stricter immigration enforcement measures.

During his heated confirmation hearing, where he clashed with committee chairman Rand Paul, Mullin portrayed himself as committed to a balanced approach to the controversial policies inherited from former Secretary Kristi Noem.

As Mullin steps into this vital role, he faces a dual pressure: to execute Trump’s immigration agenda and to address a range of crises affecting disaster response, particularly within the Federal Emergency Management Agency (FEMA).