The saga of Sae Joon Park, a Los Angeles Army veteran who legally immigrated to the United States, was awarded a Purple Heart after being wounded in combat and self-deported to South Korea, was highlighted during a testy congressional hearing about the Trump administration’s immigration policy.

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

Department of Homeland Security Secretary Kristi Noem faced questions related to her department’s efforts on illegal immigration.

During a congressional hearing, DHS Secretary Kristi Noem defending herself from Democrats who sharply questioned the Trump administration's hardline immigration actions.

She has been one of the most visible and vocal architects of Trump’s anti-immigration efforts, even as her own star risks fading

Rep. Dan Goldman, a Democrat from New York, clashed with DHS Secretary Kristi Noem during a House hearing on worldwide threats over the Trump administration's immigration actions. He confronted Noem about reinstating an Immigration and Customs Enforcement officer who was captured on video pushing a woman to the ground.

"You don’t seem to know how to tell the difference between the good guys and the bad guys," said Rhode Island Rep. Seth Magaziner.

House Democrats pushed Homeland Security Secretary Kristi Noem for answers on the Trump administration's immigration operations, with one lawmaker confronting her with a veteran who he said had been issued a removal order.