Arizona law "interfere(s) with what clearly is Washington's blatant refusal to enforce federal immigration laws"

This is a political lawsuit, driven by Obama's drop in the polls among Hispanics and Democrats' hope of bringing out Latinos this fall by hanging an anti-immigrant millstone around the GOP's neck.

The Arizona statute, on the other hand, is chiefly about the rule of law.

That Obama and Holder, along with Arizona's other critics, choose not to understand this speaks volumes.

The lawsuit does not accuse Gov. Jan Brewer and Arizona of violating the Constitution's "equal protection" clause -- curious, given the loud charges that the law will lead to massive racial profiling.

Instead, it accuses Phoenix of "crossing a constitutional line" by interfering with federal authority over immigration.

Actually, Holder -- who publicly trashed the law before he'd read it -- has a point: The law does interfere with what clearly is Washington's blatant refusal to enforce federal immigration laws.