WASHINGTON, United States (CMC) — United States (US) Democratic Congresswoman Delia C Ramirez says she has led a new investigation into the Trump administration’s arrest, detention and deportation of Caribbean and other non-citizen service members, veterans and military families.

Ramirez, a ranking member of the US House of Representatives’ Veterans’ Affairs Oversight and Investigations Subcommittee, who represents Illinois’ third Congressional District, said she was joined in the probe by US Democratic Senators Elizabeth Warren of Massachusetts, and Tammy Duckworth and Dick Durbin of Illinois, as well as by Democratic Congressional Representatives Chrissy Houlahan of Pennsylvania and Maggie Goodlander of New Hampshire.

The lawmakers have led 55 members of Congress in dispatching a letter to the US Department of Homeland Security (DHS) and the US Department of Defense (DOD) demanding an explanation for the violation of DHS’s long-standing policy that protects Caribbean and other service members, veterans and their immediate family members from immigration enforcement.

“The Trump administration’s (actions) threaten US national security interests and erode the US military’s credibility when it makes promises to its service members who have put their lives on the line for our country,” wrote the lawmakers.

“We demand an explanation for why DHS is betraying its promises to service members who play a key role in protecting US national security,” they added.

Ramirez, the daughter of working-class Guatemalan immigrants, said they strongly believe that the Trump administration is targeting military families using information the families voluntarily provided to the federal government in connection with their service.

She said that, when applying for immigration benefits like “parole in place”, military families provide extensive personal data, including their physical addresses, physical-identifying information like eye colour and height, country of birth, and more.

“Now, USCIS (US Citizenship and Immigration Services) may be using that information to refer service members or their families to ICE (Immigration and Customs Enforcement) for removal proceedings, even if they were previously deprioritised for enforcement actions,” Remirez said.

She said the coalition has asked the two agencies to provide, by September 16, 2025, among other things, information about the number of Caribbean and other non-citizens serving in the military; a list of Caribbean and other service members, veterans and family members who have been arrested, detained or deported since January 2025; the impact of these new immigration policies on recruitment, readiness and morale; and what information about Caribbean and other non-citizen service members and military family members the Pentagon provides DHS and ICE.

Ramirez noted that, in April 2025, ICE rescinded its former policy of considering military service a “significant mitigating factor” when deciding whether to pursue immigration enforcement and issued a new policy that is “less protective of service members and their families”.

Following the policy change, Ramirez said, “Multiple constituents affected by the administration’s reckless changes to immigration protections for military families have shared their stories with representatives in Congress.”