Rep. Chip Roy is not content to let the Supreme Court have the last word on birthright citizenship. The Texas Republican fired off a letter to Trump administration officials requesting a full accounting of every legal immigrant admitted to the United States since Inauguration Day 2025, and he made clear the data is just the opening move in a broader push to cut legal immigration levels.
The letter, first reported by the Daily Caller, lands as congressional Republicans remain divided over how to respond to the Court's 6-3 decision striking down President Trump's executive order that sought to end automatic citizenship for children born on U.S. soil to parents here illegally or temporarily.
Roy wants two specific numbers: how many aliens have received Lawful Permanent Resident status since January 20, 2025, and how many have been issued nonimmigrant visas over the same period. His stated goal is to use that data to draft legislation that would codify the administration's immigration restrictions, and go further by reducing legal immigration itself.
The congressman's argument cuts against the grain of the usual immigration debate, which tends to focus almost exclusively on border crossers and illegal entry. Roy is pressing a different point: that legal immigration, left unchecked, creates its own set of downstream problems, and that it feeds the illegal population in ways most Americans never hear about.
Roy told the Daily Caller:
"Securing our country from mass migration means addressing both illegal and legal immigration."
He pointed to a striking figure in making his case. Forty percent of illegal aliens in the country entered lawfully on a visa and simply never left, Roy said, making them visa overstayers. That means, by his calculation, nearly half the illegal population is a direct byproduct of the legal immigration system.
"This alarming data point should be factored in when considering legal immigration policy."
Roy also cited data showing the overall migrant population in the United States stood at 53.3 million as of 2025, roughly 15.8 percent of the total American population. That figure, linked in the Daily Caller's reporting to a Center for Immigration Studies report, gives a sense of the scale Roy is trying to address.
The immediate catalyst for Roy's letter is the Supreme Court's decision upholding birthright citizenship under the Fourteenth Amendment. The Court ruled 6-3 to strike down Trump's executive order, with the majority holding that constitutional protections extend to children of parents in the country illegally or on temporary status. The Washington Examiner reported that Justice Brett Kavanaugh joined the majority but wrote separately, arguing in a partial dissent that Congress could enact legislation establishing exceptions to birthright citizenship.
That concurrence has given Republicans a potential legislative roadmap, and Roy appears determined to walk it.
Roy described the ruling as "egregious" and framed his data request as a necessary first step before Congress can act. He argued it is the federal government's job to set "reasonable limits or reductions in immigration" to prevent American communities from being overwhelmed, "even if it's lawful."
"At a time when housing, schools, healthcare, and other public services are under increasing pressure, Congress needs a full accounting of how many legal immigrants have entered the United States since the start of this Administration."
The pressure Roy describes is not abstract. When one in six people living in the country was born somewhere else, the strain on schools, hospitals, housing stock, and local labor markets is measurable, and felt most acutely by the working-class communities that rarely get a seat at the policymaking table.
Roy is hardly alone in his frustration with the Court's ruling, but the Republican conference is far from unified on next steps. Speaker Mike Johnson expressed disappointment and said he was "looking at all angles" to legislatively address the issue. Sen. Mike Lee declared that "the long fight for a constitutional amendment begins now."
But not every Republican saw the ruling as a defeat. Rep. Mike Lawler of New York called it "well-reasoned" and said any change would require amending the Constitution, a position that effectively closes the legislative door Roy is trying to open.
The split matters because it determines whether Roy's approach, using immigration data to build the case for statutory limits, gains traction or dies in committee. Roy acknowledged the Trump administration's "commendable restriction efforts" during its second term but argued that executive action alone is not enough. Congress, he said, needs to codify those directives and go further.
"Congress obtaining data on the number of individuals we've imported, permanently or temporarily, is a first step in advancing immigration legislation that puts American interests first and builds on the Trump administration's commendable restriction efforts."
Theo Wold, the architect of Trump's original birthright citizenship executive order, offered a combative assessment of the ruling in comments reported by Just The News. Wold called the decision a "massive defeat" but predicted Trump and allies like Stephen Miller would not accept it as final.
Trump himself posted on Truth Social that the ruling was "too bad for our Country" and called on Congress to act, a signal that aligns with Roy's legislative push, even if the two men are approaching the problem from slightly different angles. Trump had signed the executive order ending birthright citizenship for U.S.-born children of illegal aliens immediately after taking office, only to watch legal analysts predict and federal courts confirm that it would not survive judicial review.
The request for hard numbers is more than a bureaucratic exercise. Roy is building a legislative record. If the administration provides data showing that millions of legal immigrants have been admitted in just eighteen months, on top of the 53.3 million foreign-born residents already here, it gives immigration hawks concrete ammunition to argue that current levels are unsustainable.
Roy put the argument in plain terms:
"The American people deserve transparency so we can ensure our immigration system puts American workers, taxpayers, and communities first."
He also acknowledged the obvious counterargument, that America has always attracted people seeking opportunity. "Understandably, our nation, being one of great opportunities, has attracted millions from across the globe for decades," Roy said. But he followed that concession with a firm limit: "However, it's incumbent on the federal government to set reasonable limits or reductions in immigration to ensure that American communities are not overwhelmed by immigration, even if it's lawful."
That framing, acknowledging America's tradition of welcome while insisting on limits that serve existing citizens, is the kind of argument that polls well but rarely translates into legislation. The question is whether the post-ruling political environment gives Roy enough leverage to change that.
Perhaps the most politically potent detail in Roy's letter is the visa overstay statistic. If forty percent of the illegal population entered through the front door on a valid visa and simply never left, then the legal immigration system is not just separate from the illegal immigration problem, it is feeding it.
That fact complicates the standard talking point from both parties. Democrats who insist on expanding legal pathways rarely grapple with the enforcement failure built into the system they want to grow. And Republicans who focus exclusively on the southern border miss the reality that a massive share of the illegal population arrived at an airport with a stamped passport.
Roy's letter forces both sides to confront an uncomfortable truth: you cannot fix illegal immigration without examining the legal system that produces so many overstayers. Whether Congress has the appetite for that conversation remains an open question. The Trump administration has not yet publicly responded to Roy's data request.
Roy is also operating without a specific bill on the table. His letter is explicitly a "first step", a request for information, not a legislative proposal. What comes next depends on whether the numbers he receives support the case he is already making, and whether enough of his colleagues are willing to take on legal immigration in an election cycle.
Several questions remain unanswered. Which specific agencies received Roy's letter, the Scribd document's filename suggests DHS and the State Department, but neither has been publicly named as a recipient. No timeline has been set for a response. And no companion legislation has been introduced.
Roy also cited the birthright ruling as Newsmax reported him calling "massively damaging to national security and to the fabric of our country." He previously called for pausing immigration entirely and withholding funding as responses to the Court's decision, positions that go well beyond what most of his Republican colleagues have endorsed.
Whether Roy's approach gains traction or remains a one-man campaign will depend on the data itself, and on whether Republican leaders decide that legal immigration is a fight worth having, not just a talking point worth dodging.
Washington has spent decades pretending that legal immigration is a settled question while the numbers quietly reshaped the country. Chip Roy is betting that the American public is ready to look at the receipts.