DEPORTATIONSICE Arrest Shines Light on Undocumented Irish Population in Trump’s America

By Liam Kennedy

Published 18 February 2026

This schism between settled and sojourner Irish in the U.S. is rarely mentioned, yet significant. The undocumented Irish take on a symbolic resonance, disrupting the common success narrative of how the Irish “made it” in the US. In the past, the law was applied leniently to overstays who were building a life in the U.S. But in the second Trump administration, this is no lionger the case.

The case of Seamus Culleton – who was detained by US immigration agents in Boston in September 2025 – is proving a diplomatic headache for the Irish government ahead of a visit to the White House on St Patrick’s Day.

Culleton arrived in the US in 2009, overstaying his visa. He married a US citizen last year and obtained a valid work permit, and was in the process of applying for permanent residency when he was apprehended by Immigration and Customs Enforcement (ICE) officers and detained. He has remained in detention in Texas since. A US court has now issued a temporary order staying his deportation.

Culleton’s case shines a rare light on the “undocumented” Irish in the US, a group that is rarely mentioned in US discussions around illegal immigration. The very idea of being undocumented in the US is associated with people from Mexico and Central and South America, not white people of European descent.

That perception reflects the racial exceptionalism that has long shadowed the Irish push for immigration reform in the US.

This history largely began in 1965, when the Immigration Reform and Nationality Act, also known as the Hart-Celler Act, radically changed conditions of immigration into the US. One effect was to reduce the numbers of Irish able to legally settle in the US.

Since the late 1960s, there have been efforts by successive groups to push for immigration reform that would advantage Irish immigration. While this work led to some successes, there was ultimate failure to secure comprehensive immigration reform.

Since the 1980s, advocacy has been primarily driven by Irish-born immigrants. At that time, the US saw an influx of immigrants leaving an economically impoverished Ireland. Many overstayed their tourist or student visas, and became undocumented – having no legal status in the US. It is estimated that there are 10,000 undocumented Irish living in the US today.

During research I was involved with in Chicago in 2017, a number of undocumented Irish consented to be interviewed anonymously. They were notably uneasy due to the recent election of President Trump and his avowedly anti-immigrant stance, expressing a sense of increased fear and uncertainty.

Equally, they were conscious that their race made them less visible to the authorities than the large numbers of undocumented people of Hispanic heritage. One interviewee commented: “People don’t think that we would be undocumented. I’m white, I can speak English, I’m Irish … that is not what the Americans are thinking of.”