Are sanctuary cities legal?
'Couple having a date on Baker Beach in San Francisco' [Shutterstock]

Last week, President-elect Donald Trump re-emphasized the approach he will take in enforcing the nation's immigration laws, which is much different from the manner of enforcement utilized by President Obama. The latter pointedly declined to deport the 5 million undocumented immigrants in the United States who are the parents of children born here - children who,…