This new bid to have both sanctuary and school poses a direct challenge to ICE, which has detained children as young as 10 and asserts the right to arrest undocumented immigrants anywhere. It promises to test the resolve of the Kenney administration, which has defended Philadelphia's "sanctuary city" status in federal court, and that of a school system that says it stands strong for immigrant students. It will stretch the organizing power of immigrant groups already strained by the roiling changes in federal policy under President Trump.