DOJ puts blue states on notice as ICE fight barrels toward next constitutional showdown

The Justice Department is threatening to sue four Democratic-led states for denying undercover license plates to Immigration and Customs Enforcement agents, opening a new constitutional front in the immigration fight. 

At issue is whether the blue states are simply refusing to help ICE carry out civil immigration enforcement, or whether withholding confidential plates interferes with the federal government’s ability to enforce immigration law.

Charles "Cully" Stimson, a senior legal fellow at the Heritage Foundation...