Republicans accused the mayors of New York, Chicago, Denver and Boston of providing sanctuary to criminals, while Democrats pointed to falling crime rates and defended helping the needy.

The mayors of four so-called “sanctuary cities” faced tough questions from lawmakers about their policies toward immigrants and how they work with Immigration and Customs Enforcement at a House Oversight and Government Reform Committee on Wednesday.

Democratic mayors of four major cities testified before the House Oversight Committee over their cities' policies limiting cooperation with immigration enforcement under the Trump administration.