"This advertisement is categorically false and it is blatantly dishonest, " Carney said.

CNN: Presidential campaign gets even dirtier

And to go to Jen's point -- and this is a matter of policy -- it is rather striking that the central engine at this time of that political campaign, and all the money that is fueling the engine, is going towards an advertisement that is provably and demonstrably false.

WHITEHOUSE: The White House