Totally false, and untrue, this is just a tactic that is used by both sides to discredit the other.
In fact one side that uses the MoveOn.org ads has gone so far as to use Racism as a reason not to elect someone. The problem is not dirty politicians; so much as it is dirty political organizations. These political organizations need to be done away with in the United States, because they seek to drag politics even further down than candidates have ever gone.
-GX