Federal immigration judges fired by the Trump administration are filing appeals, pursuing legal action and speaking out in an unusually public campaign to fight back. More than 50 immigration judges — from senior leaders to new appointees — have been fired since Donald Trump assumed the presidency for the second time.

Billal Rahman is an immigration reporter based in London, U.K. He specializes in immigration policy and border security. He has uncovered allegations of misconduct among border agents under investigation and exposed claims of abuse at ICE-run detention centers in the U.

The Trump administration has filed a lawsuit against New York City, challenging its sanctuary city status, while Republican states increase their support for federal immigration efforts.