Representative Delia Ramirez, an Illinois Democrat, demanded on Thursday that Department of Homeland Security (DHS) Secretary Kristi Noem either resign or face impeachment.

Donald Trump is considering firing DHS Secretary Kristi Noem over her alleged affair with Corey Lewandowski, as officials claim 'Things are f—ked' inside the department.

Homeland Security Secretary Kristi Noem was on Capitol Hill Thursday for a fiery House hearing on worldwide threats. CBS News national security contributor Samantha Vinograd has more.

Meanwhile, Fox News reported in October that Noem, Lewandowski, and Border Patrol Commander Greg Bovino were advocating indiscriminate roundups of illegal aliens in the US to boost deportation numbers — while Homan and acting Immigration and Customs Enforcement Director Todd Lyons wanted to focus efforts on those with criminal records.

According to Axios, supporters of both officials accuse the other of contract irregularities, and while the exact reasons for their rift remain unclear, the conflict involves a personality clash at the very least.

Homeland Security chief departs House panel amid fiery questioning; did not resign, says she needed to attend a meeting.

DHS Secretary Kristi Noem faced sharp questioning over the Trump administration's immigration operations, including a tense moment when she denied that any military veterans have been deported.

The future of Homeland Security Secretary Kristi Noem appears to be in the balance, as recent reports suggest the former South Dakota governor could be replaced

Noem’s appearance veered into a referendum on her leadership at DHS amid mounting public scrutiny of the department’s hardline immigration enforcement tactics.