Throughout his career he has served as a Border Patrol Agent, an Investigator, Supervisor Special Agent, Assistant Director of Investigations, an Assistant Special Agent in Charge, a Deputy Special Agent in Charge, and Special Agent in Charge before being named the Executive Associate Director of ICE Headquarters during the Obama administration.

In January 2017, Tom was named Acting Director of ICE by President Trump, before being nominated to that position until his retirement in 2018. Tom is the most decorated ICE Director in history.

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