The American Civil Liberties Union (ACLU) and two of its chapters are suing to halt President Trump's attempt to expand "fast-track" deportations without a full hearing. Why it matters: The lawsuit filed Wednesday in U.

ACLU sues to stop Trump policy that allows immediate deportation of some immigrants. The new policy could pave the way for mass expulsions.

This story was updated on Jan. 21 at 6:08 p.m. to reflect that the ACLU’s lawsuit was filed on Monday, not Tuesday. Hours after President Donald Trump issued an executive order Monday barring birthright citizenship to children of undocumented residents,