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.

The president has stoked fears of a ‘migrant crime’ wave, but a leading scholar says sanctuary policies encourage immigrants to cooperate with police.

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