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.

Republicans put Democrats in the hot seat as they continue to try and win the messaging wars on immigration policy.

Philadelphia Mayor Cherelle L. Parker was not asked to appear before the Congressional committee but Philadelphia’s policies mirror those of several of the cities that were taken to task there.