In these positions, he played key roles in ending the Deferred Action for Childhood Arrivals (DACA) program, creating the Trump administration's "zero tolerance" family separation policy,[2][3][4] and in revoking the Temporary Protected Status of immigrants from Sudan and South Sudan.
[8] He also serves as the treasurer for Citizens for Sanity, a conservative political action committee.
[9] In 2023, Hamilton authored the chapter on the Department of Justice for the ninth edition of the Heritage Foundation's book Mandate for Leadership, which provides the policy agenda for Project 2025.
[11] While attending law school, Hamilton interned at the Krome Immigration and Customs Enforcement (ICE) detention facility in Miami, Florida;[2][12] upon graduation he accepted a role as an Honors Attorney at the Department of Homeland Security,[13] eventually returning to ICE in its Office of Chief Counsel in Georgia.
[2] In 2016, Hamilton joined the Trump transition team, ultimately leading its immigration policy efforts.