Understanding the confusing battle over 'sanctuary cities'

Minneapolis Mayor Betsy Hodges speaks at an anti-Trump protest
There's no good way of tracking how many places fall under the common definition of sanctuary jurisdictions, but there are at least two such spots in Minnesota: Minneapolis and St. Paul. Here, Minneapolis Mayor Betsy Hodges spoke at a protest against President Trump's travel ban on Jan. 31.
Tom Baker for MPR News file