Joseph Gunther
I’m a mathematician and editor living in Brooklyn, NY. Recently I've been using public datasets to do research on both ICE arrests and immigration courts.
Selected Work
"Where has ICE been arresting people in San Francisco?," March 25, 2025.
"Two-thirds of open Somali cases placed on 'Somali rocket docket,'" March 24, 2026, with Brandon Marrow.
"No hearing necessary: pretermission and third-country deportations in immigration court," December 18, 2025, last updated March 16, 2026, with Brandon Marrow.
“Quantifying immigration court arrests,” October 7, 2025, updated numbers available on request.
“Slicing the stars: counting algebraic numbers, integers, and units by degree and height,” Algebra and Number Theory, with Robert Grizzard.
“Random hypersurfaces and embedding curves in surfaces over finite fields,” Journal of Pure and Applied Algebra.
“Integral points of bounded degree on the projective line and in dynamical orbits,” Proceedings of the American Mathematical Society, with Wade Hindes.
In the Media
Local ICE analyses
Kelly Waldron, Clara-Sophia Daly, and Nicholas David, "Hidden from plain sight: new analysis shows half of local ICE arrests happened beyond closed doors," Mission Local.
Pretermission and third-country deportations
Jazmine Ulloa, Allison McCann, and Hamed Aleaziz, "Trump administration pushes asylum seekers to apply in other countries," New York Times.
Nina Shapiro, "US pauses tactic to deport asylum-seekers to 'third countries,'" Seattle Times.
Myah Ward and Eric Bazail-Eimil, "The Trump administration's plan to close a 'huge loophole' in legal immigration," Politico.
Debbie Nathan, "The secretive, destructive work of an ICE attorney: 'My job is to do what I'm told,'" The Guardian.
Sharon Bernstein, "New tactics replace immigration court arrests as DHS seeks to end asylum cases," Sacramento Bee.
Clara-Sophia Daly, "Inside San Francisco's hollowed-out immigration court, where asylum is 'essentially over,'" Mission Local.
Liv Veazey, "ICE is trying to send hundreds of New York's African asylum seekers to a country they're not from," New York Focus.
Elizabeth Hernandez, "In Denver courtroom, Trump administration pushes to send asylum seekers to third countries," Denver Post.
Annie Knox, "Asylum seekers in Utah try to fight deportation to countries where they have no ties," Utah News Dispatch.
Jenna Ross, "Inside New Orleans' immigration court, volunteers watch cases unfold: 'from kindness to cruelty,'" Times-Picayune/New Orleans Advocate/NOLA.com.
Hannan Adely, "Asylum seeker in NJ facing deportation to country she's never seen," The Record/NorthJersey.com.
Ephrat Livni, "Palau agrees to take up to 75 migrants from the US," New York Times.
Courthouse arrests
Julia Ingram, "ICE agents target New York City immigration courts more often than others, new analysis suggests," CBS News.
Haidee Chu and Gwynne Hogan, "NYC is the nation's capital of immigration courthouse arrests, new data analysis shows," THE CITY.
Margaret Kadifa, "A courthouse arrest, a surprise pregnancy, and one family's shattered dreams," Mother Jones.
Tim Röhn, "What I saw at the epicenter of Trump's war on 'illegals,'" Politico.
Lauren Gibbons, "Michigan Supreme Court considers limits on courthouse immigration arrests," Associated Press/Bridge Michigan.
Gwynne Hogan and Harry Siegel, "NYPD confirms involvement in FBI probe targeting volunteer observers in immigration court," THE CITY.
This American Life, "The hand that rocks the gavel," NPR.
Kate Morrissey, "Timeline: what ICE arrests have looked like at the San Diego federal building," Daylight San Diego.
Wendy Fry, "He was building a life in San Diego. Then he got a one-day notice for an ICE check-in," CalMatters.
"Son cubanos, fueron a una cita de immigración y el ICE los detuvo en Nueva York: ahora temen la deportación," La Nación.
Other
Ximena Bustillo and Rahul Mukherjee, "NPR analysis shows skyrocketing number of 'no-shows' in immigration court," NPR.
Jeff Ernsthausen, Mario Ariza, McKenzie Funk, Mica Rosenberg, and Gabriel Sandoval, "Trump has detained the parents of more than 11,000 US citizen kids," ProPublica.
In Court Filings
U.T. v. Bondi, District for DC, third-country pretermissions case.
Amica Center for Immigrant Rights v. Executive Office for Immigration Review, District for DC, restricting immigration appeals case.
Pablo Sequen v. Albarran, Northern District of California, courthouse arrests case.
African Communities Together v. Lyons, Southern District of New York, courthouse arrests case.