This is confirmation of what Hillary Clinton said, choosing a rather odd way to let the world know.
"The comment was striking because both President Obama and Attorney General Eric Holder had said only that the administration was considering a suit. Arizona Gov. Jan Brewer, who signed the law, called Clinton's comments stunning and added that "to learn of this lawsuit through an Ecuadorean interview with the secretary of state is just outrageous." She has said in the past she is prepared for a court fight.
It was unclear yesterday whether Clinton's comments were simply a prediction or mistake or whether instead she was getting ahead of a planned announcement by the administration.
Now a senior administration official tells CBS News that the federal government will indeed formally challenge the law when Justice Department lawyers are finished building the case. The official said Justice is still working on building the case."