On January 25, 2017, President Trump signed an executive order, “Enhancing Public Safety in the Interior of the United States,” which announced a massive expansion of interior immigration enforcement. The order defines enforcement priorities so broadly as to place all unauthorized individuals at risk of deportation, including families, long-time residents, and “Dreamers” (those who were brought to this country as children). The order also encourages states and localities to enforce federal immigration laws. This is a change from the Obama administration’s efforts to scale back such initiatives and adopt policies intended to discourage abusive or discriminatory practices by local law enforcement. Finally, the order revives the constitutionally suspect Secure Communities program (which was terminated in 2014), orders the Department of Homeland Security (DHS) to consider stripping federal funding from so-called "sanctuary cities," and encourages additional criminal prosecutions for illegal entry into the United States. Overall, the Trump administration’s approach will have devastating consequences for immigrant communities and will undermine, rather than improve, public safety.