ICE arrest shines light on undocumented Irish population in Trump’s America

By Liam Kennedy, Professor of American Studies, University College Dublin

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…

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