President Donald Trump's mass deportation agenda has reached a crossroads as the Department of Homeland Security changes leadership, PBS reports.

The leadership change at DHS places the administration's flagship immigration enforcement programme in doubt. DHS oversees the federal agencies that carry out deportations, including Immigration and Customs Enforcement and Customs and Border Protection.

What does the leadership change mean?

The departure at the top of DHS comes while the administration pursues what it has described as mass deportation — the large-scale removal of immigrants living in the United States without legal status.

A change of secretary typically brings shifts in enforcement priorities, budget requests and internal guidance. PBS characterises the current moment as a crossroads: the programme's direction now depends on who runs the department and how quickly a successor settles in.

Who is affected?

Immigrants without legal status remain the primary target of the enforcement push. Their families, employers and immigration attorneys also track DHS leadership changes closely, because removal priorities and arrest practices can shift with each new secretary.

Advocacy groups and state governments that have litigated against or supported the deportation drive likewise face renewed uncertainty while the department reorganises.

What comes next?

The Senate must confirm any permanent replacement nominated for the DHS post. Until then, interim leadership sets enforcement policy at the department.

Readers should follow official DHS announcements at dhs.gov for confirmed changes to enforcement policy, and treat reporting on personnel moves as separate from confirmed rule changes.

The department's next secretary will decide whether the mass deportation agenda accelerates, stalls or is reshaped.