Three advocacy groups are suing the Department of Homeland Security and Secretary Kristi Noem, seeking to restore staff jobs ...

The seal of the Department of Homeland Security is seen on a podium on Feb. 23 ... Elon Musk’s Department of Government Efficiency now appears to be behind a new effort to shrink the agency’s staff.

Homeland Security officials announced Feb. 25 that it was mandating that all people in the United States illegally register with the federal government, and said those who didn’t self-report ...