Border Walls Expand and Detentions Soar as US Immigration Policy Tightens

The scale of US immigration enforcement has shifted dramatically since Donald Trump returned to office, creating a system that is both more aggressive in detention and more restrictive on entry. While the number of people crossing the southern border has dropped, the cost of enforcement and the barriers to legal entry have risen. This shift comes as midterm elections approach, with immigration remaining a central issue for voters.

Physical changes at the border are now measurable in miles and dollars. The administration secured $46.5 billion in new funding from the One Big Beautiful spending bill. Before Trump’s second term, the government reported 644 miles of primary wall and 75 miles of secondary wall. Since then, 250 more miles of barriers and detection technology are complete, with 1,443 miles currently under construction. Aaron Reichlin-Melnick of the American Immigration Council notes that the drop in crossings aligns with policy changes rather than just new infrastructure. Trump described himself as the King of the Wall at a Kentucky rally on October 17, repeating his claim that Mexico pays for the construction.

Inside the country, the pace of removal has accelerated. Immigration and Customs Enforcement recorded nearly 50,000 detentions in July, a monthly record according to the Deportation Data Project. By mid-July, ICE was removing an average of 1,255 people per day. This figure exceeds the roughly 770 daily removals seen in the final months of the Biden administration. The data indicates that a large share of those detained have no criminal convictions, while detentions of immigrants with criminal histories fell to 27% in July, an all-time low.

Public opinion on these tactics has grown divided. Operation Metro Surge, a two-month enforcement action in Minneapolis in early 2026, resulted in the deaths of two US citizens. A New York Times and Siena poll released on October 21 found that 50% of voters trust Democrats on immigration, compared to 46% for Republicans. A separate Politico and Public First poll from late September revealed that 31% of non-MAGA Republicans believe the current campaign has become too aggressive.

Refugee admissions have shrunk to a fraction of previous levels. The administration suspended refugee intake soon after taking office before reopening the process in February primarily for Afrikaners from South Africa. The fiscal 2026 cap was set at 7,500 and raised to 17,500 in May. State Department data shows 16,292 refugees admitted so far, of whom 16,287 were South African. In comparison, approximately 100,000 refugees arrived in fiscal 2024. The Supreme Court also upheld the decision in June to end Temporary Protected Status for about 350,000 Haitians.

Legal work visas now face higher costs and stricter scrutiny. A $100,000 fee on new H-1B visas, introduced in September 2025, caused a 40% drop in registrations for 2027 according to US Citizenship and Immigration Services. A court has temporarily blocked the fee, but the change has already deterred some employers. A Wharton School study found these changes would have no significant impact on the wages of US-born workers.

A new high-cost pathway has emerged for wealthy applicants. The Trump Gold Card, launched in 2025, offers residency in exchange for a $1 million gift to the government and a non-refundable $15,000 application fee. By April, only one applicant had been accepted through this program.