When conservatives raise states’ rights, federalism or the separation of powers, Democrats typically cry foul and denounce it as code for racist and otherwise discriminatory policies. But when it suits them, Democrats discover an appreciation for those concepts. On immigration, Democrats have championed the idea that cities may defy Congress, even when it means innocent people get killed.

In the wake of Donald Trump’s election victory last week, several Democratic mayors announced that they’ll defy federal law and harbor criminal illegal immigrants in their cities. Chicago Mayor Rahm Emanuel said, Chicago will “always be a sanctuary city.” (Sanctuary from what, one wonders, while pondering Chicago’s appalling murder rate).