The Homeland Security Department found more than a quarter million illegal aliens were registered to vote in four states – California, Nevada, New Jersey and Pennsylvania, according to a review the agency conducted on publicly available data. 

The finding is detailed in a memo titled “PREVENTING ALIEN VOTING” obtained by Just the News on Thursday ahead of President Donald Trump’s speech about election integrity. 

In the speech, the president also shared Intelligence Community findings that the People’s Republic of China has “compromised” more than 200 million voter records across at least 18 U.S. states.  

The agency reviewed voter registrations as part of a Trump administration priority to address concerns about illegal voting in the U.S. using the SAVE system, a controversial citizenship database that includes Social Security numbers. The administration is offering the centralized records to states to identify non-citizens on voter rolls across the country. 

The four states opted not to utilize the SAVE system, prompting the agency to conduct a separate review using publicly available voter records. 

That review found that “over 250,000 non-citizens are illegally registered to vote” in just those four states. 

“State election officials in California, Pennsylvania, New Jersey and Nevada have been notified of this serious threat to national security and DHS stands ready to support their efforts to identify and remove ineligible registrants,” the agency wrote in the memo.  

You can read the memo below: 

The agency also said that the probe would expand to include “multiple additional states.” 

In addition, the agency pointed out that several states have “successfully utilized” the federal records to review and clean their voter rolls. To date, those reviews have identified “400,000 deceased registrants” and “over 28,000 non-citizens illegally registered to vote.” 

The states that chose to participate, such as Georgia, Ohio and Tennessee, the agency said, “are serious about ensuring that only US citizens vote in US elections,” demonstrated by the comparatively low number of non-citizens enrolled to vote in those states. 

“There is an undeniable pattern emerging as DHS begins to unravel the horrific damage done by the open border policies of the Biden administration. States that have adopted alien-first policies instead of American-first policies have a disproportionate number of non-citizens on their voter rolls,” the department concluded. 

Fox News Digital reported on Thursday that Homeland Security Secretary Markwayne Mullin sent letters to four states, dated Friday, outlining the conclusions of his department’s investigation. He asked state offices to cooperate with the agency to verify voter identities. 

According to the outlet, DHS estimated as many as 190,832 non-citizens registered in California, 35,152 in New Jersey, 15,903 in Nevada and 14,576 in Pennsylvania.

Correction: An earlier version of this article incorrectly read 250 million in the headline.