An executive order that Trump signed Monday, shortly after he was sworn in, directs federal officials to take actions “to ensure that so-called ‘sanctuary’ jurisdictions, which seek to interfere with the lawful exercise of Federal law enforcement operations, do not receive access to Federal funds.”

As the Trump administration promises the “largest deportation operation in history,” what does that mean for cities with “sanctuary laws.”

Cities across the US are making preparations to protect immigrants from Donald Trump’s planned mass deportation program during his second presidency. Los Angeles passed an ordinance in November that prohibits municipal resources from being used for federal immigration enforcement.

Federal prosecutors have been directed to investigate any state or local officials who stand in the way of immigration enforcement under President Trump's administration, which may cause a clash in Bay Area sanctuary cities.

Leaders of several sanctuary cities where officials had prominently rejected Trump’s first-term immigration policies are shifting their tone.

The term "sanctuary city" is not an official designation. It refers to a city, county, or municipality that has policies or laws in place to restrict local officials from working with federal immigration authorities.