Seems character assination is all they've got in their arsenal. Attempts by the Right to attack a leftist's character could backfire- making them more attractive to the Left. Digging up dirt on a dirtbag is a waste of time, but not the other way around. (see Larry Flynt, Hillary's 900 FBI files) In order to oppose them one must be squeaky clean at all times.
That leaves all of us out in the cold. Those who THINK they're "squeaky clean" are guilty of the sin of lying, deceiving and being FULL OF CRAP!