With President-elect Donald Trump pledging to deport millions of undocumented immigrants when he takes office in January, some Massachusetts cities are reaffirming their commitments to “sanctuary city” policies, while others are considering new measures to limit cooperation with federal immigration enforcement.

Tom Homan, who will lead Trump’s deportation effort, said that sanctuary policies can shield dangerous criminals. Harboring or concealing undocumented immigrants, he said, is a federal crime.

Boston City Council unanimously approves a resolution reaffirming the city’s commitment to the Trust Act, which prevents the Boston Police Department’s involvement in civil immigration

Incoming border czar Tom Homan laid out the upcoming Trump administration's game plan for handling mass deportations and the local leaders that try to stop them.

New York City Mayor Eric Adams met with President-elect Donald Trump's incoming “border czar” on Thursday, with the Democratic mayor expressing an enthusiasm to work with the incoming administration to pursue violent criminals in the city while Trump promises a mass deportation strategy.

Homan, Trump’s former acting director of Immigration and Customs Enforcement, is expected to carry out what the president-elect has described as “the largest mass deportation