Judge Hannah Dugan was arrested on suspicion that she “intentionally misdirected federal agents away from” an immigrant being pursued by the authorities, the F.B.I. director said in a social media post.

FBI Director Kash Patel’s announcement Friday that federal authorities arrested a judge over an immigration dispute marks a stunning development in the Trump administration’s power struggle with the courts — and mirrors a similar case from President Donald Trump’s first term.

MILWAUKEE (AP) — The FBI on Friday arrested a Milwaukee judge accused of helping a man evade immigration authorities, escalating a clash between the Trump administration and the judiciary over the Republican president’s sweeping immigration crackdown.