While the mayor has publicly declined to answer whether he will cooperate with federal immigration raids on New York, the NYPD memo is the latest in a flurry of behind-the-scenes activity to

ICE raids expected on sanctuary cities after Trump's inauguration largely failed, but executive orders on border security set the stage for further immigration actions.

ICE agents will now be able to make arrests inside what was considered "sensitive" locations like schools, churches or hospitals.