The Trump administration on Wednesday escalated its global crackdown on “birth tourism,” with the State Department detailing a series of enforcement actions targeting foreign nationals accused of using U.S. visitor visas to secure citizenship for their children.

In a series of posts on X, the State Department said it is “defending the integrity of U.S. citizenship” by shutting down networks that help pregnant travelers enter the United States under false pretenses, warning that visas will be denied or revoked if childbirth is the primary purpose of travel.

The posts outlining more than 600 cases underscore a broader immigration push that has intensified scrutiny of visa applicants worldwide, particularly those suspected of misrepresenting their intent during consular interviews.

The announcement comes as the Trump administration has also tightened scrutiny across other visa programs, including H‑1B visas, as part of a broader effort to curb what officials describe as fraud and misuse in the immigration system.

Newsweek reached out to the State Department through its online portal on Wednesday for comment.

Dr. John C. Eastman of The Claremont Institute, who has advocated for changes to birthright citizenship at the Supreme Court, told Newsweek that the cases outlined make an argument for the changes made by the administration.

“The State Department’s recent exposé and revocation of fraudulent visas is further evidence of the need for President Trump’s Executive Order, correcting the misunderstanding of the 14th Amendment’s citizenship clause, which was never intended to apply to temporary or illegal visitors to this Country,” Eastman said.

“The birth tourism scam may be the most high-profile abuse, but the problem is much larger, and unless fixed, our very sovereignty and ‘consent of the governed’ cornerstone principle will be at risk.”