The Wisconsin judge who was arrested by the FBI on Friday and accused of interfering in the arrest of an undocumented immigrant has a decadeslong history of advocating for the poor and vulnerable.

A judge in Milwaukee is accused of helping a man evade immigration authorities. The case immediately became a high-profile confrontation between the Trump administration and judiciary over the Republican administration’s immigration policies.

Specifically, the complaint says Dugan assisted Eduardo Flores-Ruiz, a Mexican immigrant, avoid being arrested by federal immigration officials at the Milwaukee County Courthouse after he appeared in her courtroom for a pre-trial conference on April 18.