On Thursday, his Slovenian in-laws, Viktor and Amalija Knavs, became U.S. citizens in a private ceremony in Manhattan by taking advantage of that very programme.
"This golden experiment, these doors that are in America, remain hinged open to lovely people as they have today", Wildes said.
In 1996, she moved to New York City where she worked as a model and met Donald Trump two years later.
Tweeting on November 2, 2017, he said: "CHAIN MIGRATION must end now! This is an example of it going right", he said.
Melania Trump, who has been vacationing with her husband in Bedminster, New Jersey, did not accompany her parents.
The ceremony has prompted questions about Donald Trump's flagrant disregard for practising what he preaches, as the First Lady's parents obtained citizenship through a policy he has vocally denounced.
Advocates for restricting legal immigration have pointed to the imbalance in favor of family connections as evidence of the need for reform, calling for a "merit-based" system that would choose immigrants based on need in the US.
Trump has taken a hardline on immigration policy, criticizing so-called main migration that allows naturalized U.S. citizens to sponsor close relatives for permanent residency.
Melania Trump became a USA citizen after entering the country on an Einstein visa for "individuals of extraordinary ability" in 2001 as a model.More news: ‘Superman’ Actress Margot Kidder’s Cause of Death Released
Wildes wouldn't say how long the Knavses have lived in the US.
Canada has a MERIT-BASED system, while the U.S. prioritizes more FAMILY-based immigration.
Viktor, 74, and Amalija, 73, had been living as permanent residents in the US.
Typically, naturalisation ceremonies at the Jacob J Javits Federal Building at 26 Federal Plaza are large events, where groups of immigrants are sworn in as citizens en masse, after reciting an oath and the Pledge of Allegiance.
The Knavses raised Mrs Trump in the rural industrial town of Sevnica while Slovenia was under Communist rule.
Melania Trump's parents have been sworn in as USA citizens.
She settled in NY in 1996 and met Mr. Trump two years later.
Although Melania started from humble roots, she launched a successful modeling career prior to her marriage to the president.
Around the same time the Knavses were completing the ceremony, he was tweeting his rage about the ongoing Russian Federation probe ("an illegally brought Rigged Witch Hunt") and his excitement about plans for a sixth branch of the military ("Space Force all the way!").