Beset by falling approval ratings and a sagging economy, a desperate U.S. president and his closest advisors launch a campaign to turn America against its most unlikely enemy - Canada.

"Just ask Supreme Court Justice Antonin Scalia, who wrote the majority opinion in Printz v. U.S.... Justice Scalia held that the federal government could not require states to enforce or enact federal regulatory programs. Doing so would violate the states’ sovereignty."

"[T]he DOJ memo claims that the Supremacy Clause of the Constitution requires state and local officials to comply."

"But that’s wrong—state officials can’t be compelled to enforce federal law."